affair

1. (often in the plural) Something which is done or is to be done; business of any kind, commercial, professional, or public.Examples: "a difficult affair to manage"; "Responsibility is my affair, reciprocity is his."; "There are a number of issues external to the institution that can influence the fiscal management of student affairs."Synonyms: matter, concernin-pluraloften

2. (military) An action or engagement not of sufficient magnitude to be called a battle.

3. (slang, now rare) The (male or female) genitals.Examples: "... ſhe, with the greateſt effrontery imaginable, unbuttons his breeches, and removing his ſhirt, draws out his affair, ſo ſhrunk and diminiſh’d that I could not but remember the difference, now creſt-fallen, or just faintly lifting its head: but our experinc’d matron very ſoon, by chafing it with her hands, brought it to ſwell to that ſize and erection I had before ſeen it up to."archaicslang