Dictionary
flatten
verb flat·ten \ˈfla-tən\
: to make (something) flat or flatter
: to become flat or flatter
: to knock down (something or someone)
flat·tenedflat·ten·ing \ˈflat-niŋ, ˈfla-tə-\
Full Definition of FLATTEN
transitive verb
: 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
intransitive verb
: 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
— flat·ten·er \-nər\ noun
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First Known Use of FLATTEN
1630
FLATTENED Defined for Kids
flatten
verb flat·ten \ˈfla-tən\
flat·tenedflat·ten·ing
Definition of FLATTEN for Kids
: to make or become flat <She flattened herself against the wall.>
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