Flaps and Knock

Flaps noun - A movable airfoil that is part of an aircraft wing; used to increase lift or drag.

Knock and flaps are semantically related. In some cases you can use "Knock" instead a verb "Flaps".

Knock verb - To come into usually forceful contact with something.

Flaps and knock are semantically related. Sometimes you can replace term "Flaps" with "Knock", this verbs are similar.

Nearby Words: knocked, knockout, knockdown, knocking, knocker