- Aruba Noun Pnoun
- Arum Noun Adj
- Arundinaceous Adj
- Arundinaria Noun Pnoun
- Aruspex Noun
- Aruspices Noun
- Arvensis Adj
- Arvo Noun Adj Pnoun
- Aryan Adj Noun Pnoun
- Aryanise Verb Past Participle Pres. Participle
- Aryanize Verb
- Aryepiglottic Adj
- Aryl Noun Adj
- Arylate Noun Verb Adj
- Arylation Noun Adj
- Arylpropionic Adj Noun
- Arytenoepiglottidean Adj Noun
- Arytenoid Adj Noun
- Arytenoidal Adj
- Arythmic Adj
- As Prep Adv Conj
- As-needed Adj Adv
- ASAP Adv Noun Adj
- Asarone Noun Adj
- Asasphp
- Asbestic Adj
- Asbestine Adj Noun
- Asbestopolymer Noun Adj
- Asbestos Noun Adj
- Asbestos-containing Adj
- Asbestoses
- Asbestosis Noun Adj
- Ascariasis Noun
- Ascaricide Noun Adj
- Ascaricidic Adj
- Ascarid Noun Adj
- Ascarides Noun
- Ascaridiasis Noun
- Ascaris Noun Adj
- Ascend Verb
- Ascendable Adj
- Ascendance Noun
- Ascendancy Noun Pnoun
- Ascendant Adj Noun
- Ascended Past Participle
- Ascendent Adj Noun
- Ascender Noun Adj
- Ascending Adj Noun
- Ascension Noun Pnoun
- Ascensional Adj
- Ascensiontide Noun Pnoun
- Ascensive Adj
- Ascent Noun
- Ascentional Adj
- Ascertain Verb
- Ascertainability Noun
- Ascertainable Adj
- Ascertained Past Participle
- Ascertainment Noun Adj
- Ascesis Noun