As nouns the difference between fack and ack
is that fack is one of the four stomachs of a ruminating animal; rumen; paunch while ACK is an acknowledgement either of a packet or a message received from a network.
As an interjection ack is
acknowledged.
fack
English
Alternative forms
* (l) (obsolete)
Noun
(
en noun)
One of the four stomachs of a ruminating animal; rumen; paunch.
----
ack
Alternative forms
* ack
Noun
(
en noun)
(internet) An acknowledgement either of a packet or a message received from a network.
Antonyms
* NAK