- Homophone: knock
NOC (plural NOCs)
- Network operating / operations center.
- (electronics) Initialism of network on a chip.
- (espionage) non-official cover
- (Britain, politics) no overall control
- (sports) Initialism of National Olympic Committee.
- (network on a chip): SOC (system on a chip)
- (sports): IOC (International Olympic Committee), NPC (National Paralympic Committee)