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2.
Ack
In the TCP protocol, the receiving computer sends an ACK (acknowledgment) to the sending computer. This is basically how a coonection is established.
Sender sends 3 packets, Receiver receives 3 packets and sends "ACK 4" (meaning it received what was sent, and it's ok to send the next number or packet)
by Obi-Wan December 09, 2003
 
1.
ack
a human onomatopoeic(sound)word to describe frustration or disgust.
"ACK!!! I have work today, It's going to be a bitch!"
by Emily Winters January 05, 2005
 
3.
Ack
airport call letters for Nantucket Memorial Airport.

Common abreviation for anything Nantucket.
Ack Attack - Have to get to Nantucket for vacation
by Chris ACK June 07, 2005
 
4.
Ack
Nerdspeak for "yes" or "I hear you"
Usu. used on IM by programmers
"Is the latest patch on the source server?"
"Ack"
by mistervague November 08, 2003
 
5.
ACK
ACK is the call letters for Nantucket Airport, and thus ACK = Nantucket.
What does that "ACK" euro sticker mean? Nantucket.
by Fuzzwuzzy March 10, 2005
 
6.
ACK
the airport call signal for nantucket...like you know, JFK or LAX
Tourist: "excuse me, what does ACK stand for?"
Exasperated Native: "It's the god damn call signal for the airport!"
by ooer May 21, 2005
 
7.
ACK
The call letters for Nantucket Airport.

duh.
SON: Wow what do all those "ACK" bumper stickers mean?

DAD: Well son they are the call letters for Nantucket airport.

SON: Gee whiz dad! I wish I could be from Nantucket....

DAD: Don't we all son, don't we all- *sigh*
by Chain_Me_Free December 07, 2004