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ack
[ ak ]
/ æk /
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This shows grade level based on the word's complexity.
interjection
(used as an expression of dismay, frustration, surprise, or the like): Ack! I left the steaks on the counter, and my dog ate them both.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.
Origin of ack
First recorded in 1995–2000
Other definitions for ack (2 of 2)
ack.
abbreviation
acknowledge.
acknowledgment.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023