- A vaguely specified concern; "several matters to attend to"; "it is none of your affair"; "things are going well"
- A vaguely specified social event; "the party was quite an affair"; "an occasion arranged to honor the president"; "a seemingly endless round of social functions"
- A usually secretive or illicit sexual relationship
- Transactions of professional or public interest; "news of current affairs"; "great affairs of state"
- Matters of personal concern; "get his affairs in order"