Used attributively before nouns to denote things belonging to or characteristic of a particular historical era (e.g., "period costume").
Colloquial usage to signal finality in a statement (e.g., "End of discussion, period.").
Synonyms
full stop
and that's that
end of story
case closed
that's final
no ifs, ands, or buts
that's that
Antonyms
we'll see
not necessarily
not yet