- Atomize Verb Past Participle Pres. Participle
- Atone Verb
- Atrophy Noun Verb Past Participle Pres. Participle
- Atropinize Verb Past Participle Pres. Participle
- Attach Verb
- Attack Noun Verb Adj
- Attack back Verb
- Attain Verb
- Attaint Verb Noun
- Attemper Verb
- Attempt Noun Verb
- Attend Verb
- Attenuate Adj Verb
- Attest Verb Past Participle
- Attire Noun Verb Adj
- Attitudinise Verb
- Attitudinize Verb
- Attorn Verb
- Attract Verb
- Attribute Noun Verb Adj
- Attrition Noun Verb Adj
- Attune Verb
- Auction Noun Verb Adj
- Auctioneer Noun Verb
- Audible Adj Noun Verb Pnoun
- Audiotape Noun Verb Adj
- Audit Noun Verb Adj
- Audition Noun Verb Adj
- Auger Noun Verb Adj
- Augment Noun Verb
- Augur Noun Verb
- Aureole Noun Verb Adj
- Auriculate Adj Verb
- Auscultate Verb
- Auspice Noun Verb
- Authenticate Verb
- Author Noun Verb Adj
- Authorise Verb
- Authorize Verb Past Participle
- Auto-detect Verb Noun Adj
- Auto-identify Verb Past Participle Pres. Participle
- Auto-start Verb Noun Adj
- Autoanswer Noun Verb Adj
- Autobaud Noun Verb Adj
- Autocall Noun Verb Adj
- Autoclave Noun Verb Adj
- Autocode Noun Verb Pnoun
- Autocollimate Verb
- Autocomplete Noun Verb
- Autocross Noun Verb Adj
- Autocue Noun Adj Verb Pnoun
- Autodecrement Noun Verb Adj
- Autodetect Verb Noun Adj
- Autodial Noun Verb Adj
- Autodigest Verb Noun
- Autofeed Noun Verb Adj
- Autofill Noun Verb Adj
- Autofire Noun Verb Adj
- Autofocus Noun Verb Adj
- Autofrettage Noun Adj Verb