con·ve·nance \kōⁿv(ə)nääⁿs; ˈkänvənən(t)s, -ˌnän(t)s\noun (pluralconvenances \kōⁿv(ə)nääⁿs; ˈkänvənən(t)sə̇z, -ˌnän(t)-\) Etymology: French, from convenant, present participle of convenir to be suitable 1.: conventional usage 2.convenances plural: the things established by custom as proper to social intercourse : conventions < a forthright man with little regard for the convenances > Synonyms:see form