Simple Definition of flatten
: to make (something) flat or flatter
: to become flat or flatter
: to knock down (something or someone)
Full Definition of flatten
flat·tenedflat·ten·ing play \ˈflat-niŋ, ˈfla-tə-\
: to make flat: as a : to make level or smooth b : to knock down; also : to defeat decisively c : to make dull or uninspired —often used with out d : to make (as paint) lusterless e : to stabilize especially at a lower level
: to become flat or flatter: as a : to become dull or spiritless b : to extend in or into a flat position or form c : to become uniform or stabilized often at a new lower level —usually used with out
Examples of flatten
Dozens of houses were flattened by the tornado.
The boxer was flattened in the seventh round.
The team got flattened in the first round of the play-offs.
Prices are expected to flatten after the holiday shopping season.
First Known Use of flatten
Seen and Heard
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