| abiogenesis | (noun) a hypothetical organic phenomenon by which living organisms are created from nonliving matter | Synonyms: autogenesis, autogeny, spontaneous generation |
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| abiogenetic | (adjective) originating by abiogenesis | - |
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| abiogenist | (noun) a believer in abiogenesis | - |
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| abiotrophy | (noun) a loss of vitality and a degeneration of cells and tissues not due to any apparent injury | - |
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| abject | (adjective) of the most contemptible kind | Synonyms: low-down, low, miserable, scummy, scurvy |
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| (adjective) showing utter resignation or hopelessness | Synonyms: unhopeful |
| (adjective) showing humiliation or submissiveness | - |
| (adjective) most unfortunate or miserable | - |
| abjection | (noun) a low or downcast state | Synonyms: abasement, degradation |
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| abjectly | (adverb) in a hopeless resigned manner | Synonyms: resignedly |
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| abjuration | (noun) a disavowal or taking back of a previous assertion | Synonyms: recantation, retraction |
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| abjure | (verb) formally reject or disavow a formerly held belief, usually under pressure | Synonyms: forswear, recant, resile, retract |
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| abjurer | (noun) a person who abjures | - |
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| ablactate | (verb) gradually deprive (infants and young mammals) of mother's milk | Synonyms: wean |
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| ablactation | (noun) the act of substituting other food for the mother's milk in the diet of a child or young mammal | Synonyms: weaning |
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| (noun) the cessation of lactation | - |
| ablate | (verb) wear away through erosion or vaporization | - |
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| (verb) remove an organ or bodily structure | - |
| ablated | (adjective) made smaller or less by melting or erosion or vaporization | - |
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| ablation | (noun) surgical removal of a body part or tissue | Synonyms: cutting out, excision, extirpation |
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| (noun) the erosive process that reduces the size of glaciers | - |
| ablative | (adjective) relating to the ablative case | - |
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| (adjective) tending to ablate; i.e. to be removed or vaporized at very high temperature | - |
| (noun) the case indicating the agent in passive sentences or the instrument or manner or place of the action described by the verb | Synonyms: ablative case |
| ablaut | (noun) a vowel whose quality or length is changed to indicate linguistic distinctions (such as sing sang sung song) | - |
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| ablaze | (adjective) resembling flame in brilliance or color | - |
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| (adjective) lighted with red light as if with flames | Synonyms: inflamed, reddened |
| (adjective) lighted up by or as by fire or flame | Synonyms: afire, aflame, aflare, alight, on fire |
| (adjective) keenly excited (especially sexually) or indicating excitement | Synonyms: aflame, aroused |
| able | (adjective) (usually followed by `to') having the necessary means or skill or know-how or authority to do something | - |
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| (adjective) having inherent physical or mental ability or capacity | - |
| (adjective) have the skills and qualifications to do things well | Synonyms: capable |
| (adjective) having a strong healthy body | Synonyms: able-bodied |
| ableism | (noun) discrimination in favor of the able-bodied | Synonyms: able-bodiedism, able-bodism, ablism |
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| ablepharia | (noun) a congenital absence of eyelids (partial or complete) | - |
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| ablism | (noun) discrimination in favor of the able-bodied | Synonyms: able-bodiedism, able-bodism, ableism |
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| abloom | (adjective) when the bud, or buds, on a plant are bursting into flower | Synonyms: efflorescent |
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| ablution | (noun) the ritual washing of a priest's hands or of sacred vessels | - |
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| ablutionary | (adjective) cleansing the body by washing; especially ritual washing of e.g. hands | Synonyms: cleansing |
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| ably | (adverb) with competence; in a competent capable manner | Synonyms: aptly, capably, competently |
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| abnegate | (verb) deny or renounce | - |
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| (verb) surrender (power or a position) | - |
| (verb) deny oneself (something); restrain, especially from indulging in some pleasure | Synonyms: deny |
| abnegation | (noun) renunciation of your own interests in favor of the interests of others | Synonyms: denial, self-abnegation, self-denial, self-renunciation |
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| (noun) the denial and rejection of a doctrine or belief | - |
| abnegator | (noun) one who gives up or relinquishes or renounces something | - |
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| abnormal | (adjective) not normal; not typical or usual or regular or conforming to a norm | Synonyms: unnatural |
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| (adjective) departing from the normal in e.g. intelligence and development | - |
| (adjective) much greater than the normal | - |
| abnormalcy | (noun) an abnormal physical condition resulting from defective genes or developmental deficiencies | Synonyms: abnormality |
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| abnormality | (noun) behavior that breaches the rule or etiquette or custom or morality | Synonyms: irregularity |
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| (noun) marked strangeness as a consequence of being abnormal | Synonyms: freakishness |
| (noun) retardation sufficient to fall outside the normal range of intelligence | Synonyms: mental defectiveness |
| (noun) an abnormal physical condition resulting from defective genes or developmental deficiencies | Synonyms: abnormalcy |
| abnormally | (adverb) in an abnormal manner | - |
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| aboard | (adverb) on first or second or third base | - |
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| (adverb) on a ship, train, plane or other vehicle | Synonyms: on board |
| (adverb) part of a group | - |
| (adverb) side by side | Synonyms: alongside |
| abocclusion | (noun) the condition in which the upper teeth do not touch the lower teeth when biting | - |
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| abode | (noun) housing that someone is living in | Synonyms: domicile, dwelling, dwelling house, habitation, home |
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| (noun) any address at which you dwell more than temporarily | Synonyms: residence |
| abohm | (noun) a unit of resistance equal to a billionth of an ohm | - |
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| abolish | (verb) do away with | Synonyms: get rid of |
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| abolishable | (adjective) capable of being abolished | - |
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| abolishment | (noun) the act of abolishing a system or practice or institution (especially abolishing slavery) | Synonyms: abolition |
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| abolition | (noun) the act of abolishing a system or practice or institution (especially abolishing slavery) | Synonyms: abolishment |
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| abolitionary | (adjective) relating to or favoring abolition, especially abolition of slavery | - |
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| abolitionism | (noun) the doctrine that calls for the abolition of slavery | - |
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| abolitionist | (noun) a reformer who favors abolishing slavery | Synonyms: emancipationist |
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| abomasal | (adjective) relating to the abomasum (the fourth compartment of the stomach of ruminants) | - |
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| abomasum | (noun) the fourth compartment of the stomach of a ruminant; the one where digestion takes place | Synonyms: fourth stomach |
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| abominable | (adjective) exceptionally bad or displeasing | Synonyms: atrocious, awful, dreadful, painful, terrible, unspeakable |
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| (adjective) unequivocally detestable | Synonyms: detestable, execrable, odious |
| abominably | (adverb) in a terrible manner | Synonyms: abysmally, atrociously, awfully, rottenly, terribly |
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| (adverb) in an offensive and hateful manner | Synonyms: detestably, odiously, repulsively |
| abominate | (verb) find repugnant | Synonyms: abhor, execrate, loathe |
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| abomination | (noun) an action that is vicious or vile; an action that arouses disgust or abhorrence | - |
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| (noun) hate coupled with disgust | Synonyms: abhorrence, detestation, execration, loathing, odium |
| (noun) a person who is loathsome or disgusting | - |
| abominator | (noun) one who hates or loathes | Synonyms: loather |
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| aborad | (adverb) away from the mouth or oral region | - |
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| aboral | (adjective) opposite to or away from the mouth | - |
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| aboriginal | (adjective) characteristic of or relating to people inhabiting a region from the beginning | Synonyms: native |
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| (adjective) having existed from the beginning; in an earliest or original stage or state | Synonyms: primaeval, primal, primeval, primordial |
| (noun) an indigenous person who was born in a particular place | Synonyms: aborigine, indigen, indigene, native |
| aborigine | (noun) an indigenous person who was born in a particular place | Synonyms: aboriginal, indigen, indigene, native |
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| abort | (noun) the act of terminating a project or procedure before it is completed | - |
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| (verb) terminate a pregnancy by undergoing an abortion | - |
| (verb) cease development, die, and be aborted | - |
| (verb) terminate before completion | - |
| aborticide | (noun) the act of destroying a fetus | Synonyms: feticide |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: abortifacient, abortion-inducing drug |
| abortifacient | (adjective) causing abortion | - |
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| (noun) a drug (or other chemical agent) that causes abortion | Synonyms: aborticide, abortion-inducing drug |
| abortion | (noun) termination of pregnancy | - |
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| (noun) failure of a plan | Synonyms: miscarriage |
| abortionist | (noun) a person (who should be a doctor) who terminates pregnancies | - |
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| abortive | (adjective) failing to accomplish an intended result | Synonyms: stillborn, unsuccessful |
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| abortively | (adverb) in an unfruitful manner | - |
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| abortus | (noun) a human fetus whose weight is less than 0.5 kilogram when removed or expelled from the mother's body | - |
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| aboulia | (noun) a loss of will power | Synonyms: abulia |
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| aboulic | (adjective) suffering from abulia; showing abnormal inability to act or make decisions | Synonyms: abulic |
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| abound | (verb) be abundant or plentiful; exist in large quantities | - |
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| (verb) be in a state of movement or action | Synonyms: bristle, burst |
| abounding | (adjective) existing in abundance | Synonyms: galore |
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| about | (adjective) on the move | Synonyms: astir |
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| (adverb) (of quantities) imprecise but fairly close to correct | Synonyms: approximately, around, close to, just about, more or less, or so, roughly, some |
| (adverb) in the area or vicinity | Synonyms: around |
| (adverb) in or to a reversed position or direction | Synonyms: around |
| (adverb) in rotation or succession | - |
| (adverb) used of movement to or among many different places or in no particular direction | Synonyms: around |
| (adverb) (of actions or states) slightly short of or not quite accomplished; all but | Synonyms: almost, most, near, nearly, nigh, virtually, well-nigh |
| (adverb) all around or on all sides | Synonyms: around |
| above | (adjective) appearing earlier in the same text | - |
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| (noun) an earlier section of a written text | - |
| (adverb) (in writing) at an earlier place | Synonyms: supra |
| (adverb) in or to a place that is higher | Synonyms: higher up, in a higher place, to a higher place |
| aboveboard | (adjective) without concealment or deception; honest | Synonyms: straightforward |
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| (adverb) in an honest manner | Synonyms: honestly |
| aboveground | (adjective) on or above the surface of the ground | - |
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| abracadabra | (noun) gibberish and nonsense | - |
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| abrachia | (noun) the condition of having no arms | - |
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| abradant | (noun) a tool or machine used for wearing down or smoothing or polishing | Synonyms: abrader |
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| (noun) a substance that abrades or wears down | Synonyms: abrasive, abrasive material |
| abrade | (verb) wear away | Synonyms: abrase, corrade, rub down, rub off |
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| (verb) rub hard or scrub | Synonyms: scour |
| abrader | (noun) a tool or machine used for wearing down or smoothing or polishing | Synonyms: abradant |
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| abranchial | (adjective) having no gills | Synonyms: abranchiate, abranchious, gill-less |
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| abranchiate | (adjective) having no gills | Synonyms: abranchial, abranchious, gill-less |
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| abranchious | (adjective) having no gills | Synonyms: abranchial, abranchiate, gill-less |
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| abrase | (verb) wear away | Synonyms: abrade, corrade, rub down, rub off |
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| abrasion | (noun) the wearing down of rock particles by friction due to water or wind or ice | Synonyms: attrition, detrition, grinding |
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| (noun) erosion by friction | Synonyms: attrition, corrasion, detrition |
| (noun) an abraded area where the skin is torn or worn off | Synonyms: excoriation, scrape, scratch |
| abrasive | (adjective) sharply disagreeable; rigorous | Synonyms: harsh |
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| (adjective) causing abrasion | Synonyms: scratchy |
| (noun) a substance that abrades or wears down | Synonyms: abradant, abrasive material |
| abrasiveness | (noun) the roughness of a substance that causes abrasions | Synonyms: harshness, scratchiness |
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| (noun) the quality of being sharply disagreeable | - |
| abreact | (verb) discharge bad feelings or tension through verbalization | - |
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| abreaction | (noun) (psychoanalysis) purging of emotional tensions | Synonyms: catharsis, katharsis |
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| abreast | (adjective) being up to particular standard or level especially in being up to date in knowledge | Synonyms: au courant, au fait, up on |
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| (adverb) alongside each other, facing in the same direction | - |
| abridge | (verb) reduce in scope while retaining essential elements | Synonyms: abbreviate, contract, cut, foreshorten, reduce, shorten |
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| (verb) lessen, diminish, or curtail | - |
| abridged | (adjective) (used of texts) shortened by condensing or rewriting | - |
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| abridgement | (noun) a shortened version of a written work | Synonyms: abridgment, capsule, condensation |
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| abridger | (noun) one who shortens or abridges or condenses a written work | Synonyms: abbreviator |
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| abridgment | (noun) a shortened version of a written work | Synonyms: abridgement, capsule, condensation |
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| abroach | (adjective) of a cask or barrel | Synonyms: broached |
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| abroad | (adjective) in a foreign country | Synonyms: overseas |
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| (adverb) to or in a foreign country | - |
| (adverb) in a place across an ocean | Synonyms: overseas |
| (adverb) far away from home or one's usual surroundings | Synonyms: afield |
| abrocome | (noun) ratlike rodent with soft fur and large ears of the Andes | Synonyms: chinchilla rat, rat chinchilla |
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| abrogate | (verb) revoke formally | - |
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| abrogation | (noun) the act of abrogating; an official or legal cancellation | Synonyms: annulment, repeal |
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| abrogator | (noun) an authority or official empowered to abolish or annul or repeal | - |
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| abrupt | (adjective) surprisingly and unceremoniously brusque in manner | - |
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| (adjective) marked by sudden changes in subject and sharp transitions | Synonyms: disconnected |
| (adjective) dangerously steep | Synonyms: precipitous, sharp |
| (adjective) exceedingly sudden and unexpected | - |
| abruption | (noun) an instance of sudden interruption | Synonyms: breaking off |
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| abruptly | (adverb) quickly and without warning; happening unexpectedly; on impulse; without premeditation | Synonyms: all of a sudden, dead, of a sudden, on the spur of the moment, short, suddenly |
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