no-knock

[ noh-nok ]
/ ˈnoʊˌnɒk /

adjective

antiknock.
Law. that authorizes law-enforcement officers to enter premises unannounced and without identifying themselves: a no-knock narcotics policy.

Origin of no-knock

An Americanism dating back to 1965–70

Words nearby no-knock

no-hit, no-hitter, no-hoper, no-host, no-iron, no-knock, no-load, no-lose, no-man's-land, no-mark, no-mates