affair
noun
af·fair
| \ ə-ˈfer
\
\
Definition of affair
1a
affairs plural
: commercial, professional, public, or personal business
handles the company's public affairs an expert in foreign affairs
2
: a procedure, action, or occasion only vaguely specified
also
: an object or collection of objects only vaguely specified
Their house was a 2-story affair.
3 or less commonly affaire
a
: a romantic or passionate attachment typically of limited duration : liaison sense 2b
had an affair with a coworker
b
: a matter occasioning public anxiety, controversy, or scandal : case
the Watergate affair of the early 1970s