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keep up

verb

Definition of keep up

  1. transitive verb
  2. :  to persist or persevere in <kept up the good work>; also :  maintain, sustain <keep standards up>

  3. intransitive verb
  4. 1 :  to keep adequately informed or up-to-date <keep up on international affairs>

  5. 2 :  to continue without interruption <rain kept up all night>

  6. 3 :  to maintain contact or relations with someone <keep up with old friends>



Examples of keep up in a sentence

  1. <let's hope that old air conditioner keeps up through this heat wave>

  2. <kept the house up while the owners were gone>



15th Century

First Known Use of keep up

15th century



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