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Definition of flatten out phrasal verb from the Oxford Advanced Learner's Dictionary

flatten out

phrasal verb
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flatten out
  1. to gradually become completely flat
    • The hills first rose steeply then flattened out towards the sea.
  2. to stop growing or going up
    • Export growth has started to flatten out.
flatten something out
  1. to make something completely flat
See flatten out in the Oxford Advanced American Dictionary

Nearby words

previously
adverb
 
 
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