noun
also acknowledgement , pl -ments
the act of acknowledging something or someone: such as
the act of showing that you know, admit, or accept that something exists or is true [count]
The killer's apology was an acknowledgment [=admission] of his guilt. = The killer's apology was an acknowledgment that he was guilty.
The day passed without any acknowledgment that it was their wedding anniversary. [=no one mentioned that it was their wedding anniversary]
the act of praising or thanking someone for an action or achievement [count]
acknowledgments [plural] :a section of a book, article, etc., in which people are thanked for their help
[count] :a usually written statement saying that a letter or message was received