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acknowledge

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verb [transitive] acknowledge pronunciation in British English /əkˈnɒlɪdʒ/ 
Word Forms
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present tense
I/you/we/theyacknowledge
he/she/itacknowledges
present participleacknowledging
past tenseacknowledged
past participleacknowledged
  1. 1
    to accept or admit that something exists, is true, or is real

    He never acknowledges his mistakes (=admits that he has made them).

    acknowledge that:

    She won't acknowledge that there's a problem.

    1. a.
      [usually passive] to know or recognize that someone or something is important
      acknowledge something as being/to be something:

      Wimbledon is widely acknowledged as being the premier tennis tournament.

  2. 2
    to let someone know that you have received something they sent you

    Unfortunately, we cannot acknowledge all the letters we receive.

    acknowledge receipt of something:

    We will acknowledge receipt of your order if requested.

    1. a.
  3. 3
    to show that you have seen someone or that you recognize them, for example by smiling or speaking to them

    They barely acknowledge each other in public.

    acknowledge someone's presence:

    James acknowledged his lawyer's presence with a small nod.

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