Several matters to attend to. It is none of your affair. Things are going well.
source: WordNet 3.0
a usually secretive or illicit sexual relationship
source: WordNet 3.0
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.
source: WordNet 3.0
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.