ACK meaning: Acknowledgment signal in data transmission

We found 26 dictionaries that define the word ACK:

General (9 matching dictionaries)

ack: Merriam-Webster
Ack, ack: Wordnik
ACK, ack: Wiktionary
ack: Infoplease Dictionary
ACK, ack: Dictionary.com
ACK (TCP), ACK (networking), ACK, Ack: Wikipedia, the Free Encyclopedia
Ack: Rhymezone
ack: Stammtisch Beau Fleuve Acronyms
ack: Merriam-Webster

Business (2 matching dictionaries)

Travel Industry Dictionary (No longer online)
BusinessDictionary.com (No longer online)

Computing (9 matching dictionaries)

ACK: Free On-line Dictionary of Computing
ACK: Netlingo
ACK: CCI Computer
BABEL: Computer Oriented Abbreviations and Acronyms (No longer online)
CNET Internet Glossary (No longer online)
ACK: Hacking Lexicon
SMS Dictionary (No longer online)
I T Glossary (No longer online)
ACK (TCP), ACK (computing), ACK: Encyclopedia

Medicine (1 matching dictionary)

online medical dictionary (No longer online)

Miscellaneous (2 matching dictionaries)

ACK: Acronym Finder
AbbreviationZ (No longer online)

Slang (1 matching dictionary)

ack: Green’s Dictionary of Slang

Tech (2 matching dictionaries)

ACK: Webster's New World Telecom Dictionary
DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)

Google, News, Images, Wikipedia, Reddit, BlueSky

Definitions from Wiktionary (Ack)

▸ noun:  (networking) An acknowledgement either of a packet or a message received from a network.
▸ verb:  (networking) To acknowledge a packet or a message received from a network.
▸ noun:  (military, now historical) The letter A as used in signalling and other types of communications.
▸ noun:  (data communications) acknowledgment signal
▸ verb:  Alternative form of ACK. [(networking) To acknowledge a packet or a message received from a network.]

Similar:

ackgt., ans., acq., acc., ACCH, appr, snap, APON, 1ANCP, acct, more...

Opposite:

nack, negative, denial, rejection, refusal

Types:

okay, alright, sure, yup, yes, yea, uh huh, definitely, absolutely, more...

Phrases:

ack ack, ack ack, syn ack, ack emma, ack ack gun, more...

Adjectives:

duplicate, syn, final, configure, last, positive, heavy, terminate, corresponding, single, brackety

Colors:

black, khaki, lilac, peacock, teal, more...