1. act of going or coming back; act of giving back; reply, answer; profit, yield; repayment; return key, alternate name for the enter key (computers); ball that is hit or run back (sports). go or come back; give or send back; revert; reply, answer; reciprocate; run or hit back (sports); yield a profit; officially announce; reflect, send back energy from a surface. pertaining to a return; reciprocal, done in response to a previous action; repeated, recurring; used to come back, used for returning; sent back, given back; reflected. returnre*turn, v. t