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rub out

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phrasal verb [transitive]
Word Forms
present tense
I/you/we/theyrub out
he/she/itrubs out
present participlerubbing out
past tenserubbed out
past participlerubbed out
  1. 1
    British to remove with a rubber something that you have written or drawn in pencil, especially because you have made a mistake

    If you make a mistake rub it out and rewrite the answer.

    1. a.
      to remove writing or drawing from a blackboard, whiteboard etc so that the surface is clean

      When she returned to the whiteboard, someone had rubbed out all her calculations.

See also main entry: rub

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