flatten - definition and synonyms

verb 

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/ˈflæt(ə)n/
present tense
I/you/we/theyflatten
he/she/itflattens
present participleflattening
past tenseflattened
past participleflattened
  1. 1

    flatten

    or

    flatten out

    [intransitive/transitive] if something flattens, or if you flatten it, it becomes flat or flatter

    This exercise helps to flatten a flabby stomach.

    A longer pile carpet will flatten over time.

  2. 3
    [transitive] to press yourself against something

    I flattened myself against the wall.

  3. 4
    [transitive] informal to knock someone down by hitting them hard
  4. 5
    [transitive] informal to completely defeat someone in a fight, argument etc

phrasal verbs