n. - That which is done or is to be done; matter; concern; as, a difficult affair to manage; business of any kind, commercial, professional, or public; -- often in the plural. "At the head of affairs." Junius.
n. - Any proceeding or action which it is wished to refer to or characterize vaguely; as, an affair of honor, i. e., a duel; an affair of love, i. e., an intrigue.
n. - An action or engagement not of sufficient magnitude to be called a battle.
n. - Action; endeavor.
n. - A material object (vaguely designated).