| extant | (adjective) still in existence; not extinct or destroyed or lost | - |
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| extemporaneous | (adjective) with little or no preparation or forethought | Synonyms: ad-lib, extemporary, extempore, impromptu, off-the-cuff, offhand, offhanded, unrehearsed |
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| extemporaneously | (adverb) without prior preparation | Synonyms: extemporarily, extempore |
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| extemporarily | (adverb) without prior preparation | Synonyms: extemporaneously, extempore |
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| extemporary | (adjective) with little or no preparation or forethought | Synonyms: ad-lib, extemporaneous, extempore, impromptu, off-the-cuff, offhand, offhanded, unrehearsed |
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| extempore | (adjective) with little or no preparation or forethought | Synonyms: ad-lib, extemporaneous, extemporary, impromptu, off-the-cuff, offhand, offhanded, unrehearsed |
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| (adverb) without prior preparation | Synonyms: extemporaneously, extemporarily |
| extemporisation | (noun) a performance given extempore without planning or preparation | Synonyms: extemporization, improvisation |
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| extemporise | (verb) perform without preparation | Synonyms: ad-lib, extemporize, improvise, improvize |
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| extemporization | (noun) a performance given extempore without planning or preparation | Synonyms: extemporisation, improvisation |
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| extemporize | (verb) perform without preparation | Synonyms: ad-lib, extemporise, improvise, improvize |
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| (verb) manage in a makeshift way; do with whatever is at hand | Synonyms: improvise |
| extend | (verb) extend one's limbs or muscles, or the entire body | Synonyms: stretch |
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| (verb) thrust or extend out | Synonyms: exsert, hold out, put out, stretch forth, stretch out |
| (verb) extend in scope or range or area | Synonyms: broaden, widen |
| (verb) lengthen in time; cause to be or last longer | Synonyms: draw out, prolong, protract |
| (verb) continue or extend | Synonyms: carry |
| (verb) expand the influence of | Synonyms: expand |
| (verb) increase in quantity or bulk by adding a cheaper substance | Synonyms: stretch |
| (verb) prolong the time allowed for payment of | - |
| (verb) use to the utmost; exert vigorously or to full capacity | Synonyms: strain |
| (verb) open or straighten out; unbend | - |
| (verb) extend or stretch out to a greater or the full length | Synonyms: stretch, stretch out, unfold |
| (verb) cause to move at full gallop | Synonyms: gallop |
| (verb) offer verbally | Synonyms: offer |
| (verb) make available; provide | Synonyms: offer |
| (verb) span an interval of distance, space or time | Synonyms: continue, cover |
| (verb) reach outward in space | Synonyms: poke out, reach out |
| (verb) stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point | Synonyms: go, lead, pass, run |
| extendable | (adjective) capable of being lengthened | Synonyms: extendible |
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| extended | (adjective) fully extended or stretched forth | - |
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| (adjective) beyond the literal or primary sense | - |
| (adjective) large in spatial extent or range or scope or quantity | Synonyms: extensive |
| (adjective) drawn out or made longer spatially | Synonyms: elongated, lengthened, prolonged |
| (adjective) relatively long in duration; tediously protracted | Synonyms: drawn-out, lengthy, prolonged, protracted |
| extendible | (adjective) capable of being lengthened | Synonyms: extendable |
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| extensible | (adjective) capable of being protruded or stretched or opened out | Synonyms: extensile |
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| extensile | (adjective) capable of being protruded or stretched or opened out | Synonyms: extensible |
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| extension | (noun) an educational opportunity provided by colleges and universities to people who are not enrolled as regular students | Synonyms: extension service, university extension |
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| (noun) act of stretching or straightening out a flexed limb | - |
| (noun) act of expanding in scope; making more widely available | - |
| (noun) an addition that extends a main building | Synonyms: annex, annexe, wing |
| (noun) an addition to the length of something | Synonyms: elongation |
| (noun) an additional telephone set that is connected to the same telephone line | Synonyms: extension phone, telephone extension |
| (noun) amount or degree or range to which something extends | Synonyms: lengthiness, prolongation |
| (noun) the ability to raise the working leg high in the air | - |
| (noun) the most direct or specific meaning of a word or expression; the class of objects that an expression refers to | Synonyms: denotation, reference |
| (noun) a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename | Synonyms: file name extension, filename extension |
| (noun) the spreading of something (a belief or practice) into new regions | Synonyms: propagation |
| (noun) a mutually agreed delay in the date set for the completion of a job or payment of a debt | - |
| extensional | (adjective) defining a word by listing the class of entities to which the word correctly applies | - |
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| extensive | (adjective) of agriculture; increasing productivity by using large areas with minimal outlay and labor | - |
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| (adjective) broad in scope or content | Synonyms: across-the-board, all-embracing, all-encompassing, all-inclusive, blanket, broad, encompassing, panoptic, wide |
| (adjective) large in spatial extent or range or scope or quantity | Synonyms: extended |
| extensively | (adverb) in a widespread way | - |
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| extensiveness | (noun) large or extensive in breadth or importance or comprehensiveness | Synonyms: largeness |
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| extensor | (noun) a skeletal muscle whose contraction extends or stretches a body part | Synonyms: extensor muscle |
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| extent | (noun) the distance or area or volume over which something extends | - |
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| (noun) the point or degree to which something extends | - |
| extenuate | (verb) lessen or to try to lessen the seriousness or extent of | Synonyms: mitigate, palliate |
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| extenuating | (adjective) partially excusing or justifying | - |
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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 |
| exterior | (adjective) situated in or suitable for the outdoors or outside of a building | - |
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| (noun) the outer side or surface of something | Synonyms: outside |
| (noun) the region that is outside of something | Synonyms: outside |
| exteriorisation | (noun) embodying in an outward form | Synonyms: exteriorization, externalisation, externalization |
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| exteriorise | (verb) make external or objective, or give reality to | Synonyms: exteriorize, externalise, externalize, objectify |
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| exteriorization | (noun) embodying in an outward form | Synonyms: exteriorisation, externalisation, externalization |
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| exteriorize | (verb) make external or objective, or give reality to | Synonyms: exteriorise, externalise, externalize, objectify |
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| (verb) bring outside the body for surgery, of organs | Synonyms: bring outside |
| exterminable | (adjective) capable of being totally destroyed or wiped out | Synonyms: extirpable |
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| exterminate | (verb) kill en masse; kill on a large scale; kill many | Synonyms: kill off |
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| (verb) destroy completely, as if down to the roots | Synonyms: eradicate, extirpate, root out, uproot |
| exterminated | (adjective) destroyed completely | Synonyms: annihilated, wiped out |
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| extermination | (noun) the act of exterminating | Synonyms: liquidation |
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| (noun) complete annihilation | Synonyms: extinction |
| exterminator | (noun) someone who exterminates (especially someone whose occupation is the extermination of troublesome rodents and insects) | Synonyms: eradicator, terminator |
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| extern | (noun) a nonresident doctor or medical student; connected with a hospital but not living there | Synonyms: medical extern |
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| external | (adjective) happening or arising or located outside or beyond some limits or especially surface | - |
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| (adjective) coming from the outside | Synonyms: extraneous, outside |
| (adjective) from or between other countries | Synonyms: international, outside |
| (adjective) purely outward or superficial | - |
| (noun) outward features | - |
| externalisation | (noun) embodying in an outward form | Synonyms: exteriorisation, exteriorization, externalization |
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| (noun) attributing to outside causes | Synonyms: externalization |
| externalise | (verb) make external or objective, or give reality to | Synonyms: exteriorise, exteriorize, externalize, objectify |
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| (verb) regard as objective | Synonyms: externalize, project |
| externality | (noun) the quality or state of being outside or directed toward or relating to the outside or exterior | Synonyms: outwardness |
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| externalization | (noun) embodying in an outward form | Synonyms: exteriorisation, exteriorization, externalisation |
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| (noun) attributing to outside causes | Synonyms: externalisation |
| externalize | (verb) make external or objective, or give reality to | Synonyms: exteriorise, exteriorize, externalise, objectify |
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| (verb) regard as objective | Synonyms: externalise, project |
| externally | (adverb) with respect to the outside | Synonyms: outwardly |
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| (adverb) on or from the outside | - |
| exteroception | (noun) sensitivity to stimuli originating outside of the body | - |
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| exteroceptive | (adjective) of or relating to exteroception | - |
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| exteroceptor | (noun) any receptor that responds to stimuli outside the body | - |
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| exterritorial | (adjective) outside territorial limits or jurisdiction | Synonyms: extraterritorial |
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| extinct | (adjective) no longer in existence; lost or especially having died out leaving no living representatives | Synonyms: nonextant |
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| (adjective) (of e.g. volcanoes) permanently inactive | - |
| (adjective) being out or having grown cold | Synonyms: out |
| 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 | - |
| extinguish | (verb) put an end to; kill | Synonyms: snuff out |
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| (verb) kill in large numbers | Synonyms: annihilate, carry off, decimate, eliminate, eradicate, wipe out |
| (verb) terminate, end, or take out | Synonyms: do away with, eliminate, get rid of |
| (verb) extinguish by crushing | Synonyms: crush out, press out, stub, stub out |
| (verb) put out, as of fires, flames, or lights | Synonyms: blow out, quench, snuff out |
| extinguishable | (adjective) capable of being extinguished or killed | - |
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| extinguished | (adjective) of a conditioned response; caused to die out because of the absence or withdrawal of reinforcement | - |
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| extinguisher | (noun) a manually operated device for extinguishing small fires | Synonyms: asphyxiator, fire extinguisher |
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| extinguishing | (noun) the act of extinguishing; causing to stop burning | Synonyms: extinction, quenching |
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| extirpable | (adjective) capable of being totally destroyed or wiped out | Synonyms: exterminable |
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| extirpate | (verb) surgically remove (an organ) | - |
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| (verb) pull up by or as if by the roots | Synonyms: deracinate, root out, uproot |
| (verb) destroy completely, as if down to the roots | Synonyms: eradicate, exterminate, root out, uproot |
| 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 |
| extirpator | (noun) a farm implement used to remove weeds. | - |
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| extol | (verb) praise, glorify, or honor | Synonyms: exalt, glorify, laud, proclaim |
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| extoller | (noun) someone who communicates high praise | Synonyms: laudator, lauder |
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| extolment | (noun) an expression of approval and commendation | Synonyms: congratulations, kudos, praise |
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| extort | (verb) get or cause to become in a difficult or laborious manner | Synonyms: wring from |
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| (verb) obtain by coercion or intimidation | Synonyms: gouge, rack, squeeze, wring |
| (verb) obtain through intimidation | - |
| 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 | - |
| extortionate | (adjective) greatly exceeding bounds of reason or moderation | Synonyms: exorbitant, outrageous, steep, unconscionable, usurious |
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| extortionately | (adverb) to an exorbitant degree | Synonyms: exorbitantly, usuriously |
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| extortioner | (noun) a criminal who extorts money from someone by threatening to expose embarrassing information about them | Synonyms: blackmailer, extortionist |
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| extortionist | (noun) a criminal who extorts money from someone by threatening to expose embarrassing information about them | Synonyms: blackmailer, extortioner |
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| extra | (adjective) further or added | Synonyms: additional |
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| (adjective) more than is needed, desired, or required | Synonyms: excess, redundant, spare, supererogatory, superfluous, supernumerary, surplus |
| (adjective) added to a regular schedule | Synonyms: special |
| (noun) something additional of the same kind | Synonyms: duplicate |
| (noun) an additional edition of a newspaper (usually to report a crisis) | - |
| (noun) a minor actor in crowd scenes | Synonyms: spear carrier, supernumerary |
| (adverb) unusually or exceptionally | - |
| extracellular | (adjective) located or occurring outside a cell or cells | - |
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| extract | (noun) a passage selected from a larger work | Synonyms: excerpt, excerption, selection |
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| (noun) a solution obtained by steeping or soaking a substance (usually in water) | Synonyms: infusion |
| (verb) extract by the process of distillation | Synonyms: distil, distill |
| (verb) take out of a literary work in order to cite or copy | Synonyms: excerpt, take out |
| (verb) calculate the root of a number | - |
| (verb) remove, usually with some force or effort; also used in an abstract sense | Synonyms: draw out, pull, pull out, pull up, rip out, take out, tear out |
| (verb) obtain from a substance, as by mechanical action | Synonyms: express, press out |
| (verb) separate (a metal) from an ore | - |
| (verb) deduce (a principle) or construe (a meaning) | Synonyms: draw out, educe, elicit, evoke |
| (verb) get despite difficulties or obstacles | - |
| extractable | (adjective) capable of being extracted | Synonyms: extractible |
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| extractant | (noun) an immiscible liquid used to extract a substance from another liquid. | - |
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| extractible | (adjective) capable of being extracted | Synonyms: extractable |
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| 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 | - |
| extractivity | (noun) the amount of extract that grains of malt yield. | - |
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| extractor | (noun) an instrument for extracting tight-fitting components | - |
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| (noun) an apparatus that uses centrifugal force to separate particles from a suspension | Synonyms: centrifuge, separator |
| (noun) a mechanism in a firearm that pulls an empty shell case out of the chamber and passes it to the ejector | Synonyms: cartridge extractor, cartridge remover |
| extracurricular | (adjective) characterized by adultery | Synonyms: adulterous, extramarital |
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| (adjective) outside the regular duties of your job or profession | - |
| (adjective) outside the regular academic curriculum | - |
| extradite | (verb) hand over to the authorities of another country | Synonyms: deliver, deport |
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| 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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| extrados | (noun) the exterior curve of an arch | - |
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| extradural | (adjective) on or outside the dura mater | Synonyms: epidural |
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| extragalactic | (adjective) outside or beyond a galaxy | - |
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| extrajudicial | (adjective) beyond the usual course of legal proceedings; legally unwarranted | - |
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| extralegal | (adjective) not regulated or sanctioned by law | Synonyms: nonlegal |
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| extralinguistic | (adjective) not included within the realm of language | - |
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| extramarital | (adjective) characterized by adultery | Synonyms: adulterous, extracurricular |
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| extramural | (adjective) carried on outside the bounds of an institution or community | - |
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| extraneity | (noun) The state of not forming an essential or vital part. | Synonyms: extraneousness |
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| extraneous | (adjective) not belonging to that in which it is contained; introduced from an outside source | Synonyms: foreign |
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| (adjective) not pertinent to the matter under consideration | Synonyms: immaterial, impertinent, orthogonal |
| (adjective) coming from the outside | Synonyms: external, outside |
| (adjective) not essential | - |
| extraneousness | (noun) The state of not forming an essential or vital part. | Synonyms: extraneity |
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| (noun) unrelatedness by virtue of falling outside the matter at hand | - |
| extraordinaire | (adjective) extraordinary in a particular capacity | - |
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| extraordinarily | (adverb) to a surprising degree | Synonyms: inordinately |
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| extraordinariness | (noun) the quality of being extraordinary and not commonly encountered | - |
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| extraordinary | (adjective) beyond what is ordinary or usual; highly unusual or exceptional or remarkable; special | - |
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| (adjective) far more than usual or expected | Synonyms: over-the-top, sinful |
| (adjective) (of an official) serving an unusual or special function in addition to those of the regular officials | - |
| extrapolate | (verb) estimate the value of something based on known values | Synonyms: interpolate |
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| (verb) gain knowledge of (an area not known or experienced) by extrapolating | - |
| (verb) draw from specific cases for more general cases | Synonyms: generalise, generalize, infer |
| 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 | - |
| extrasensory | (adjective) seemingly outside normal sensory channels | Synonyms: paranormal |
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| extrasystole | (noun) a premature systole resulting in a momentary cardiac arrhythmia | - |
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| extrasystolic | (adjective) of or relating to or happening during an extrasystole | - |
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