As a noun ack
is the letter a as used in signalling and other types of communications.
As an interjection ack
is (radio communications) acknowledged or ack can be expressing distaste, alarm, or trepidation.
As a pronoun ock is
.
ack
Alternative forms
* ack
Noun
(
en noun)
(internet) An acknowledgement either of a packet or a message received from a network.
Antonyms
* NAK