Definitions

1. verb

to express agreement or confirmation, typically in response to a question or request

“She acknowledged his plan with a simple ‘ack’.”

2. noun

an expression of agreement or confirmation, typically in the form of a short sound, such as ‘ack’ or ‘okay’

“His ‘ack’ was all the confirmation she needed.”

3. exclamation

used to express agreement, confirmation, or understanding

“I said ‘ack’ and we both laughed.”

4. interjection

used to express agreement, confirmation, or understanding

“She just said ‘ack’ and walked away.”