Synonyms:

• a lot
• a million
• a million times
• A. Noam Chomsky
• a-ok
• a-okay
• a-one
• a people
• A plus
• a posteriori
• a priori
• a thousand

• a trifle
• a trillion
• a zillion
• aa
• aachen
• Aaland Islands
• aalborg
• aalost
• aar
• aardvark
• aardwolf
• aare