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He never acknowledges his mistakes (=admits that he has made them).
She won't acknowledge that there's a problem.
Unfortunately, we cannot acknowledge all the letters we receive.
We will acknowledge receipt of your order if requested.
They barely acknowledge each other in public.
James acknowledged his lawyer's presence with a small nod.
This is the American English definition of acknowledge. View British English definition of acknowledge.
someone who studies the stars and planets using scientific equipment including telescopes