A question inviting the listener to indicate agreement, formed by adding a “tag” word or expression to a statement. For example “You love me, don’t you?”
A question used after a statement when seeking or expecting confirmation of that statement, as wasn't he in He was here, wasn't he?. a question that is formed by adding a phrase such as 'can't we?', 'wouldn't he?', or 'is it?' to a sentence