The definition of commencement means the act or celebration of beginning.
(Uncountable) The first gear of an engine.
A beginning, as of a campaign or drive
the time at which something is supposed to begin
Find another word for showtime. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for showtime, like: beginning, commencement, first, outset, get-go, start, kickoff, starting time and offset.