Definition of become
1a
: to come into existence
b
: to come to be
become sick They both became teachers.
2
: to undergo change or development
The pain was becoming more intense.
: to be suitable to
seriousness becoming the occasion
especially
: to be becoming to
her clothes become her
become of
: to happen to
wondering whatever became of old friends
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Merriam-Webster unabridged
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Time Traveler for become
The first known use of become was before the 12th century
See more words from the same century