A skin condition, usually of the face, that is common in adolescents. It is characterised by red pimples, and is caused by the inflammation of sebaceous glands through bacterial infection.

ACOGname

Acronym of American College of Obstetricians and Gynecologists.

acolytenoun

One who has received the highest of the four minor orders in the Catholic Church, being ordained to carry the wine, water and lights at Mass.

acornnoun

The fruit of the oak, being an oval nut growing in a woody cup or cupule.

Acostaname

A Spanish habitational surname from Catalan.

acousticadj

Pertaining to the sense of hearing, the organs of hearing, or the science of sounds.

acousticaladj

Of or pertaining to hearing or acoustics.

acousticallyadv

In an acoustic manner, or using an acoustic musical instrument.

acousticsnoun

The science of sounds, teaching their nature, phenomena and laws.

ACPnoun

Initialism of acyl carrier protein.

acquaintverb

To furnish or give experimental knowledge of; to make (one) know; to make familiar.

acquaintancenoun

A state of being acquainted with a person; originally indicating friendship, intimacy, but now suggesting a slight knowledge less deep than that of friendship; acquaintanceship.

acquaintedadj

Personally known; familiar.

acquiesceverb

To rest satisfied, or apparently satisfied, or to rest without opposition and discontent (usually implying previous opposition or discontent); to accept or consent by silence or by omitting to object.

acquiescencenoun

A silent or passive assent or submission, or a submission with apparent consent, distinguished from avowed consent on the one hand, and on the other, from opposition or open discontent; quiet satisfaction.

acquireverb

To get.

acquiredverb

simple past and past participle of acquire

acquirernoun

One who acquires.

acquiringverb

present participle and gerund of acquire

acquisitionnoun

The act or process of acquiring.

acquisitiveadj

Acquired.

acquitverb

To declare or find innocent or not guilty.

acquitsverb

third-person singular simple present indicative of acquit

acquittalnoun

The act of fulfilling the duties (of a given role, obligation etc.).

acquittedverb

simple past and past participle of acquit

acrenoun

An English unit of land area (symbol: a. or ac.) originally denoting a day's ploughing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86 square metres.

acreagenoun

Size, as measured in acres.

acresnoun

plural of acre

acridadj

Sharp and harsh, or bitter and not to the taste.

acrimoniousadj

Harsh and sharp, or bitter and not pleasant to the taste; acrid, pungent.

acrimonynoun

A sharp and bitter hatred.

acrobatnoun

An athlete who performs acts requiring skill, agility and coordination, often as part of a circus performance.

acrobaticadj

Of or pertaining to an acrobat.

acrobaticsnoun

The art of performing acrobatic gymnastic feats.

Spelling & Dictionary Insight

The English alphabetical index for the letter A contains 35,202 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 705 pages, and you are currently viewing page 10. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "A" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.