All 4 Uses

acknowledge
in
Divergent, by Veronica Roth
(Edited)

"A brave man acknowledges the strength of others," Four replies.
p. 95.4

acknowledges = recognizes
I wanted to acknowledge a part of myself that Abnegation demanded that I hide.
p. 263.9 *

acknowledge = admit (or recognize publicly)
There are tears on my face, but neither of us mentions or even acknowledges them.
p. 285.3

acknowledges = expresses recognition of
Tori said they want to acknowledge death as soon as it happens.
p. 304.5

acknowledge = express recognition of

Definitions:

(1) (acknowledge as in: acknowledge her or the truth)
express recognition or appreciation of someone or something; or to admit or express something
(2) (meaning too rare to warrant focus)
Specialized senses include sending an "acknowledgement" (letter or other message) to indicate that something was received and the "acknowledgements" section at the beginning of a book where an author recognizes and thanks other people who helped in creating the book or ideas contained in it.