A - 1: used when referring to someone or something for the first time in a text or conversation. "a man came out of the room" 2: used to indicate membership o

A - 1: used when referring to someone or something for the first time in a text or conversation. "a man came out of the room" 2: used to indicate membership of a class of people or things. "he is a lawyer" [0] https://www.google.com/search?q=define+a https://www.google.com/search?q=define+a