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9-Letter Words Starting with AC

For puzzles requiring AC prefixes, here are all 9-letter word options. Popular examples include ACADEMIAS, ACADEMICS, ACADEMIES, plus ACADEMISM, ACALEPHAE, ACALEPHES and many more. Click any word for its full definition and usage.

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134 words

Word	Length	Syllables
academias	9	4
academics	9	4
academies	9	4
academism	9	4
acalephae	9	3
acalephes	9	4
acariases	9	4
acariasis	9	4
acaricide	9	4
acaridans	9	4
accenting	9	3
accentors	9	3
accentual	9	3
acceptant	9	3
acceptees	9	3
accepters	9	3
accepting	9	3
acceptive	9	3
acceptors	9	3
accessary	9	4
accessing	9	3
accession	9	3
accessory	9	4
accidence	9	3
accidents	9	3
accipiter	9	4
acclaimed	9	3
acclaimer	9	3
acclimate	9	3
acclivity	9	4
accolades	9	4
accompany	9	4
accordant	9	3
accorders	9	3
according	9	3
accordion	9	3
accosting	9	3
accounted	9	3
accouters	9	3
accoutred	9	3
accoutres	9	3
accredits	9	3
accreting	9	3
accretion	9	3
accretive	9	3
accruable	9	2
accusants	9	3
accustoms	9	3
aceldamas	9	4
acellular	9	4
acerbated	9	4
acerbates	9	4
acervulus	9	4
acescents	9	3
acetabula	9	5
acetamide	9	4
acetamids	9	4
acetified	9	4
acetifies	9	4
acetoxyls	9	4
acetylate	9	4
acetylene	9	4
achalasia	9	4
achievers	9	3
achieving	9	3
achilleas	9	3
achromats	9	3
aciculums	9	4
acidemias	9	4
acidheads	9	3
acidified	9	4
acidifier	9	4
acidifies	9	4
acidities	9	4
acidophil	9	4
acidulate	9	4
acidulent	9	4
acidulous	9	4
acidurias	9	4
acierated	9	4
acierates	9	4
aconitums	9	4
acoustics	9	3
acquaints	9	2
acquiesce	9	2
acquirers	9	3
acquiring	9	3
acquittal	9	3
acquitted	9	3
acquitter	9	3
acridines	9	4
acridness	9	3
acritarch	9	3
acrobatic	9	4
acrodonts	9	3
acrolects	9	3
acroleins	9	3
acroliths	9	3
acromions	9	3
acronymic	9	4
acropetal	9	4
acrophobe	9	3
acropolis	9	4
acrosomal	9	4
acrosomes	9	4
acrostics	9	3
acrotisms	9	3
acrylates	9	4
actinians	9	3
actinides	9	4
actinisms	9	3
actiniums	9	3
actinoids	9	3
activated	9	4
activates	9	4
activator	9	4
activisms	9	3
activists	9	3
activized	9	4
activizes	9	4
actresses	9	3
actuality	9	4
actualize	9	3
actuarial	9	3
actuaries	9	3
actuating	9	3
actuation	9	3
actuators	9	3
acuminate	9	4
acutances	9	4
acuteness	9	4
acyclovir	9	4
acylating	9	4
acylation	9	4

FAQs

Are AC-starting words common?
AC is a frequent start; probing vowel swaps after AC quickly narrows options.

Is this list good for crosswords?
Yes—filter by length mentally and scan definitions when available.