no-knock
[noh-nok]
- antiknock.
- Law. that authorizes law-enforcement officers to enter premises unannounced and without identifying themselves: a no-knock narcotics policy.
Show More
Origin of no-knock
An Americanism dating back to 1965–70
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018