Ack
intj, noun, verb ·Uncommon ·Advanced level
Definitions
- 1 An acknowledgement either of a packet or a message received from a network.
- 2 The letter A as used in signalling and other types of communications. historical
"They had to begin at the beginning: learning the Morse code, flag-wagging, a succession of acks, and practice on the buzzer."
- 3 acknowledgment signal
- 1 To acknowledge a packet or a message received from a network.
"Yet, with full ECN nonce functionality and totally unreliable behaviour, ACKing individual packets only would require the receiver to maintain state that could theoretically grow without bounds."
- 2 Alternative form of ACK. alt-of, alternative
- 3 To commit suicide. offensive, reflexive
- 1 acknowledged
- 2 Expressing distaste, alarm, or trepidation.
- 3 Mocking a transgender person by imitating the sound of choking during a suicide by hanging, evoking the notion that transgender people frequently commit suicide. offensive
"ACK!"
Antonyms
All antonymsExample
More examples""The old lady of this shop is very unsociable but ..." "Taiki, I can hear you!" "Ack!""
Etymology
Clipping of acknowledged.
Imitative. Etymology 2 sense 2 is first attested in the latter part of September, 2021 on /qa/ - Question & Answer, from which it appears to have originated.
Related phrases
More for "ack"
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.