| extemporization | (noun) a performance given extempore without planning or preparation | Synonyms: extemporisation, improvisation |
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| extenuation | (noun) to act in such a way as to cause an offense to seem less serious | Synonyms: mitigation, palliation |
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| (noun) a partial excuse to mitigate censure; an attempt to represent an offense as less serious than it appears by showing mitigating circumstances | Synonyms: mitigation |
| exteriorisation | (noun) embodying in an outward form | Synonyms: exteriorization, externalisation, externalization |
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| exteriorization | (noun) embodying in an outward form | Synonyms: exteriorisation, externalisation, externalization |
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| extermination | (noun) the act of exterminating | Synonyms: liquidation |
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| (noun) complete annihilation | Synonyms: extinction |
| externalisation | (noun) embodying in an outward form | Synonyms: exteriorisation, exteriorization, externalization |
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| (noun) attributing to outside causes | Synonyms: externalization |
| externalization | (noun) embodying in an outward form | Synonyms: exteriorisation, exteriorization, externalisation |
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| (noun) attributing to outside causes | Synonyms: externalisation |
| exteroception | (noun) sensitivity to stimuli originating outside of the body | - |
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| extinction | (noun) the act of extinguishing; causing to stop burning | Synonyms: extinguishing, quenching |
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| (noun) a conditioning process in which the reinforcer is removed and a conditioned response becomes independent of the conditioned stimulus | Synonyms: experimental extinction |
| (noun) complete annihilation | Synonyms: extermination |
| (noun) the reduction of the intensity of radiation as a consequence of absorption and radiation | - |
| (noun) no longer in existence | Synonyms: defunctness |
| (noun) no longer active; extinguished | - |
| extirpation | (noun) surgical removal of a body part or tissue | Synonyms: ablation, cutting out, excision |
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| (noun) the act of pulling up or out; uprooting; cutting off from existence | Synonyms: deracination, excision |
| extortion | (noun) the felonious act of extorting money (as by threats of violence) | - |
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| (noun) unjust exaction (as by the misuse of authority) | - |
| (noun) an exorbitant charge | - |
| extraction | (noun) the action of taking out something (especially using effort or force) | - |
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| (noun) properties attributable to your ancestry | Synonyms: descent, origin |
| (noun) the process of obtaining something from a mixture or compound by chemical or physical or mechanical means | - |
| extradition | (noun) the surrender of an accused or convicted person by one state or country to another (usually under the provisions of a statute or treaty) | - |
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| extrapolation | (noun) (mathematics) calculation of the value of a function outside the range of known values | - |
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| (noun) an inference about the future (or about some hypothetical situation) based on known facts and observations | - |
| extravasation | (noun) the process of exuding or passing out of a vessel into surrounding tissues; said of blood or lymph or urine | - |
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| (noun) (of volcanoes) pouring out fumes or lava (or a deposit so formed) | Synonyms: eructation, eruption |
| (noun) an extravasated liquid (blood or lymph or urine); the product of extravasation | - |
| extrication | (noun) the act of releasing from a snarled or tangled condition | Synonyms: disentanglement, unsnarling, untangling |
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| extrospection | (noun) examination or observation of what is outside oneself, as opposed to introspection. | - |
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| exudation | (noun) the process of exuding; the slow escape of liquids from blood vessels through pores or breaks in the cell membranes | Synonyms: transudation |
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| (noun) a substance that oozes out from plant pores | Synonyms: exudate |
| exultation | (noun) the utterance of sounds expressing great joy | Synonyms: jubilation, rejoicing |
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| (noun) a feeling of extreme joy | Synonyms: jubilance, jubilancy, jubilation |
| fabrication | (noun) the act of making something (a product) from raw materials | Synonyms: manufacture, manufacturing |
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| (noun) the act of constructing something (as a piece of machinery) | Synonyms: assembly |
| (noun) writing in a fictional form | Synonyms: fictionalisation, fictionalization |
| (noun) the deliberate act of deviating from the truth | Synonyms: lying, prevarication |
| (noun) a deliberately false or improbable account | Synonyms: fable, fiction |
| facilitation | (noun) act of assisting or making easier the progress or improvement of something | - |
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| (noun) (neurophysiology) phenomenon that occurs when two or more neural impulses that alone are not enough to trigger a response in a neuron combine to trigger an action potential | - |
| (noun) the condition of being made easy (or easier) | - |
| faction | (noun) a dissenting clique | Synonyms: sect |
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| (noun) a clique (often secret) that seeks power usually through intrigue | Synonyms: cabal, camarilla, junto |
| factorisation | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factoring, factorization |
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| factorization | (noun) (mathematics) the resolution of an expression into factors such that when multiplied together they give the original expression | Synonyms: factoring, factorisation |
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| falsification | (noun) the act of rendering something false as by fraudulent changes (of documents or measures etc.) or counterfeiting | Synonyms: falsehood |
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| (noun) the act of determining that something is false | Synonyms: disproof, falsifying, refutal, refutation |
| (noun) a willful perversion of facts | Synonyms: misrepresentation |
| (noun) any evidence that helps to establish the falsity of something | Synonyms: disproof, refutation |
| familiarisation | (noun) the experience of becoming familiar with something | Synonyms: familiarization |
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| familiarization | (noun) the experience of becoming familiar with something | Synonyms: familiarisation |
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| fasciculation | (noun) muscular twitching of contiguous groups of muscle fibers | - |
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| fascination | (noun) the capacity to attract intense interest | - |
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| (noun) a feeling of great liking for something wonderful and unusual | Synonyms: captivation, enchantment, enthrallment |
| (noun) the state of being intensely interested (as by awe or terror) | Synonyms: captivation |
| fecundation | (noun) creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant | Synonyms: fertilisation, fertilization, impregnation |
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| (noun) making fertile as by applying fertilizer or manure | Synonyms: dressing, fertilisation, fertilization |
| federalisation | (noun) the act of being put under federal control | Synonyms: federalization |
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| (noun) the state of being under federal control | Synonyms: federalization |
| federalization | (noun) the act of being put under federal control | Synonyms: federalisation |
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| (noun) the state of being under federal control | Synonyms: federalisation |
| federation | (noun) the act of constituting a political unity out of a number of separate states or colonies or provinces so that each member retains the management of its internal affairs | - |
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| (noun) a union of political organizations | Synonyms: confederacy, confederation |
| (noun) an organization formed by merging several groups or parties | - |
| felicitation | (noun) the act of acknowledging that someone has an occasion for celebration | Synonyms: congratulation |
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| (noun) (usually plural) an expression of pleasure at the success or good fortune of another | Synonyms: congratulation |
| fellation | (noun) oral stimulation of the penis | Synonyms: fellatio |
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| feminisation | (noun) the process of becoming feminized; the development of female characteristics (loss of facial hair or breast enlargement) in a male because of hormonal disorders or castration | Synonyms: feminization |
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| feminization | (noun) the process of becoming feminized; the development of female characteristics (loss of facial hair or breast enlargement) in a male because of hormonal disorders or castration | Synonyms: feminisation |
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| fenestration | (noun) surgical procedure that creates a new fenestra to the cochlea in order to restore hearing lost because of osteosclerosis | - |
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| (noun) the arrangement of windows in a building | - |
| fermentation | (noun) a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol | Synonyms: ferment, fermenting, zymolysis, zymosis |
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| (noun) a state of agitation or turbulent change or development | Synonyms: agitation, ferment, tempestuousness, unrest |
| fertilisation | (noun) creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant | Synonyms: fecundation, fertilization, impregnation |
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| (noun) making fertile as by applying fertilizer or manure | Synonyms: dressing, fecundation, fertilization |
| fertilization | (noun) creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant | Synonyms: fecundation, fertilisation, impregnation |
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| (noun) making fertile as by applying fertilizer or manure | Synonyms: dressing, fecundation, fertilisation |
| festination | (noun) involuntary shortening of stride and quickening of gait that occurs in some diseases (e.g., Parkinson's disease) | - |
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| fibrillation | (noun) act or process of forming fibrils | - |
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| (noun) muscular twitching involving individual muscle fibers acting without coordination | - |
| fiction | (noun) a literary work based on the imagination and not necessarily on fact | - |
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| (noun) a deliberately false or improbable account | Synonyms: fable, fabrication |
| fictionalisation | (noun) writing in a fictional form | Synonyms: fabrication, fictionalization |
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| (noun) a literary work based partly or wholly on fact but written as if it were fiction | Synonyms: fictionalization |
| fictionalization | (noun) writing in a fictional form | Synonyms: fabrication, fictionalisation |
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| (noun) a literary work based partly or wholly on fact but written as if it were fiction | Synonyms: fictionalisation |
| figuration | (noun) decorating with a design | - |
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| (noun) representing figuratively as by emblem or allegory | - |
| filiation | (noun) inherited properties shared with others of your bloodline | Synonyms: ancestry, derivation, lineage |
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| (noun) the kinship relation between an individual and the individual's progenitors | Synonyms: descent, line of descent, lineage |
| filtration | (noun) the act of changing a fluid by passing it through a filter | - |
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| (noun) the process whereby fluids pass through a filter or a filtering medium | - |
| finalisation | (noun) the act of finalizing | Synonyms: finalization |
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| finalization | (noun) the act of finalizing | Synonyms: finalisation |
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| fitspiration | (noun) something that inspires you to exercise | - |
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| fixation | (noun) (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body | Synonyms: fixing |
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| (noun) the activity of fastening something firmly in position | - |
| (noun) an unhealthy and compulsive preoccupation with something or someone | Synonyms: obsession |
| (noun) an abnormal state in which development has stopped prematurely | Synonyms: arrested development, infantile fixation, regression |
| flagellation | (noun) beating with a whip or strap or rope as a form of punishment | Synonyms: flogging, lashing, tanning, whipping |
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| (noun) beating as a source of erotic or religious stimulation | - |
| flection | (noun) deviation from a straight or normal course | Synonyms: flexion, inflection |
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| (noun) the state of being flexed (as of a joint) | Synonyms: flexion, flexure |
| flirtation | (noun) playful behavior intended to arouse sexual interest | Synonyms: coquetry, dalliance, flirt, flirting, toying |
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| floatation | (noun) financing a commercial enterprise by bond or stock shares | Synonyms: flotation |
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| (noun) the phenomenon of floating (remaining on the surface of a liquid without sinking) | Synonyms: flotation |
| flocculation | (noun) the process of flocculating; forming woolly cloudlike aggregations | - |
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| flotation | (noun) financing a commercial enterprise by bond or stock shares | Synonyms: floatation |
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| (noun) the phenomenon of floating (remaining on the surface of a liquid without sinking) | Synonyms: floatation |
| fluctuation | (noun) the quality of being unsteady and subject to changes | Synonyms: wavering |
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| (noun) an instance of change; the rate or magnitude of change | Synonyms: variation |
| (noun) a wave motion | - |
| fluoridation | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridisation, fluoridization |
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| fluoridisation | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridation, fluoridization |
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| fluoridization | (noun) the addition of a fluoride to the water supply (to prevent dental decay) | Synonyms: fluoridation, fluoridisation |
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| focalisation | (noun) the act of bringing into focus | Synonyms: focalization, focusing |
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| (noun) the confinement of an infection to a limited area | Synonyms: focalization |
| focalization | (noun) the act of bringing into focus | Synonyms: focalisation, focusing |
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| (noun) the confinement of an infection to a limited area | Synonyms: focalisation |
| foliation | (noun) the production of foil by cutting or beating metal into thin leaves | - |
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| (noun) the work of coating glass with metal foil | - |
| (noun) (architecture) leaf-like architectural ornament | Synonyms: foliage |
| (noun) (geology) the arrangement of leaflike layers in a rock | - |
| (noun) (botany) the process of forming leaves | Synonyms: leafing |
| fomentation | (noun) deliberate and intentional triggering (of trouble or discord) | Synonyms: instigation |
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| (noun) application of warm wet coverings to a part of the body to relieve pain and inflammation | - |
| (noun) a substance used as a warm moist medicinal compress or poultice | - |
| foreordination | (noun) (theology) being determined in advance; especially the doctrine (usually associated with Calvin) that God has foreordained every event throughout eternity (including the final salvation of mankind) | Synonyms: predestination, predetermination, preordination |
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| formalisation | (noun) the act of making formal (as by stating formal rules governing classes of expressions) | Synonyms: formalization |
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| formalization | (noun) the act of making formal (as by stating formal rules governing classes of expressions) | Synonyms: formalisation |
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| formation | (noun) the act of fabricating something in a particular shape | Synonyms: shaping |
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| (noun) the act of forming or establishing something | Synonyms: constitution, establishment, organisation, organization |
| (noun) creation by mental activity | - |
| (noun) a particular spatial arrangement | - |
| (noun) an arrangement of people or things acting as a unit | - |
| (noun) (geology) the geological features of the earth | Synonyms: geological formation |
| (noun) natural process that causes something to form | - |
| formication | (noun) hallucinated sensation that insects or snakes are crawling over the skin; a common side-effect of extensive use of cocaine or amphetamines | - |
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| formulation | (noun) inventing or contriving an idea or explanation and formulating it mentally | Synonyms: conceptualisation, conceptualization |
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| (noun) the style of expressing yourself | Synonyms: expression |
| (noun) a substance prepared according to a formula | Synonyms: preparation |
| fornication | (noun) voluntary sexual intercourse between persons not married to each other | - |
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| (noun) extramarital sex that willfully and maliciously interferes with marriage relations | Synonyms: adultery, criminal conversation |
| fortification | (noun) the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food) | - |
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| (noun) defensive structure consisting of walls or mounds built around a stronghold to strengthen it | Synonyms: munition |
| (noun) the art or science of strengthening defenses | - |
| fossilisation | (noun) becoming inflexible or out of date | Synonyms: fossilization |
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| (noun) the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone | Synonyms: fossilization |
| fossilization | (noun) becoming inflexible or out of date | Synonyms: fossilisation |
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| (noun) the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone | Synonyms: fossilisation |
| foundation | (noun) the act of starting something for the first time; introducing something new | Synonyms: creation, founding, initiation, innovation, instauration, institution, introduction, origination |
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| (noun) lowest support of a structure | Synonyms: base, foot, fundament, groundwork, substructure, understructure |
| (noun) a woman's undergarment worn to give shape to the contours of the body | Synonyms: foundation garment |
| (noun) the fundamental assumptions from which something is begun or developed or calculated or explained | Synonyms: base, basis, cornerstone, fundament, groundwork |
| (noun) education or instruction in the fundamentals of a field of knowledge | Synonyms: grounding |
| (noun) an institution supported by an endowment | - |
| (noun) the basis on which something is grounded | - |
| fraction | (noun) a small part or item forming a piece of a whole | - |
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| (noun) the quotient of two rational numbers | - |
| (noun) a component of a mixture that has been separated by a fractional process | - |
| fractionation | (noun) separation into portions | - |
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| (noun) a process that uses heat to separate a substance into its components | Synonyms: fractional process |
| fragmentation | (noun) separating something into fine particles | Synonyms: atomisation, atomization |
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| (noun) the scattering of bomb fragments after the bomb explodes | - |
| (noun) (computer science) the condition of a file that is broken up and stored in many different locations on a magnetic disk | - |
| (noun) the disintegration of social norms governing behavior and thought and social relationships | - |
| fraternisation | (noun) associating with others in a brotherly or friendly way; especially with an enemy | Synonyms: fraternization |
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| fraternization | (noun) associating with others in a brotherly or friendly way; especially with an enemy | Synonyms: fraternisation |
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| friction | (noun) effort expended in moving one object over another with pressure | Synonyms: detrition, rubbing |
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| (noun) the resistance encountered when one body is moved in contact with another | Synonyms: rubbing |
| (noun) a state of conflict between persons | Synonyms: clash |
| fructification | (noun) organs of fruiting (especially the reproductive parts of ferns and mosses) | - |
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| (noun) the bearing of fruit | - |
| fruition | (noun) something that is made real or concrete | Synonyms: realisation, realization |
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| (noun) enjoyment derived from use or possession | - |
| (noun) the condition of bearing fruit | - |
| frustration | (noun) an act of hindering someone's plans or efforts | Synonyms: foiling, thwarting |
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| (noun) the feeling that accompanies an experience of being thwarted in attaining your goals | Synonyms: defeat |
| (noun) a feeling of annoyance at being hindered or criticized | - |
| fulmination | (noun) the act of exploding with noise and violence | - |
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| (noun) thunderous verbal attack | Synonyms: diatribe |
| fumigation | (noun) the application of a gas or smoke to something for the purpose of disinfecting it | - |
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| function | (noun) the actions and activities assigned to or required or expected of a person or group | Synonyms: office, part, role |
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| (noun) what something is used for | Synonyms: purpose, role, use |
| (noun) a set sequence of steps, part of larger computer program | Synonyms: procedure, routine, subprogram, subroutine |
| (noun) a formal or official social gathering or ceremony of people | Synonyms: affair, occasion, social affair, social function, social gathering, social occasion |
| (noun) a formal or official social gathering or ceremony | - |
| (noun) (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function) | Synonyms: map, mapping, mathematical function, single-valued function |
| (noun) a relation such that one thing is dependent on another | - |
| furcation | (noun) the place where something divides into branches | Synonyms: forking |
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| galvanisation | (noun) either the work of covering with metal by the use of a galvanic current or the coating of iron with zinc to protect it from rusting | Synonyms: galvanization |
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| (noun) stimulation that arouses a person to lively action | Synonyms: galvanization |
| (noun) stimulation with a galvanic current | Synonyms: galvanization |
| galvanization | (noun) either the work of covering with metal by the use of a galvanic current or the coating of iron with zinc to protect it from rusting | Synonyms: galvanisation |
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| (noun) stimulation that arouses a person to lively action | Synonyms: galvanisation |
| (noun) stimulation with a galvanic current | Synonyms: galvanisation |
| gamification | (noun) Making something more engaging by incorporating ideas and mechanics from games | - |
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| gasification | (noun) the process of changing into gas | - |
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| gastrulation | (noun) the process in which a gastrula develops from a blastula by the inward migration of cells | - |
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| gemination | (noun) the act of copying or making a duplicate (or duplicates) of something | Synonyms: duplication |
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| (noun) the doubling of a word or phrase (as for rhetorical effect) | - |
| gemmation | (noun) asexual reproduction in which a local growth on the surface or in the body of the parent becomes a separate individual | Synonyms: pullulation |
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| generalisation | (noun) an idea or conclusion having general application | Synonyms: generality, generalization |
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| (noun) reasoning from detailed facts to general principles | Synonyms: generalization, induction, inductive reasoning |
| (noun) (psychology) transfer of a response learned to one stimulus to a similar stimulus | Synonyms: generalization, stimulus generalisation, stimulus generalization |
| (noun) the process of formulating general concepts by abstracting common properties of instances | Synonyms: abstraction, generalization |
| generalization | (noun) an idea or conclusion having general application | Synonyms: generalisation, generality |
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| (noun) reasoning from detailed facts to general principles | Synonyms: generalisation, induction, inductive reasoning |
| (noun) (psychology) transfer of a response learned to one stimulus to a similar stimulus | Synonyms: generalisation, stimulus generalisation, stimulus generalization |
| (noun) the process of formulating general concepts by abstracting common properties of instances | Synonyms: abstraction, generalisation |