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n.
a statement acknowledging something or someone; "she must have seen him but she gave no sign of acknowledgment"; "the preface contained an acknowledgment of those who had helped her"
n.
a statement (either spoken or written) that is made in reply to a question or request or criticism or accusation; "I waited several days for his answer"; "he wrote replies to several of his critics"
n.
approval; "give her recognition for trying"; "he was given credit for his work"; "give her credit for trying"; "the credits were given at the end of the film"
n.
enthusiastic approval; "the book met with modest acclaim"; "he acknowledged the plaudits of the crowd"; "they gave him more eclat than he really deserved"