NAK
NAK (noun) means In computing and networking, a signal indicating that a message was not received correctly (short for "negative acknowledgement"). Example: “The modem sent a NAK after detecting a checksum error.”
How to use NAK
Learner’s notesIn plain EnglishA technical signal meaning "that message didn't come through properly" — the opposite of an ACK.
Technical/computing jargon, almost always written in capitals as NAK.
Word forms
- Plural
- naks
Fill the gap
Can you complete this real example?
The modem sent a _____ after detecting a checksum error.