"(". ASCII character 40. Common names: left paren left parentheSIS left open paren (")" = theSIS) open paren open parentheSIS left parentheSIS left banana. Rare: so (")" = already) lparen ITU-T: opening parentheSIS open round bracket, left round bracket, INTERCAL: wax (")" = wane) parenthisey (")" = unparenthisey) left ear. Paired with right parentheSIS (")"). (1995-03-06)