plural of kneeboard

(surfing) A short (often less than 6'), broad (sometimes extremely broad) surfboard designed to be ridden in the surf in a kneeling position, and often having traction pads in the central area as an alternative to wax, to help the knees grip the deck.

to surf or water-ski using a kneeboard

A person who kneels. / A hassock. / An apparatus that permits the loading door of a bus to decrease in height in order to facilitate boarding of passengers that are seniors and physically disadvantaged

plural of kneejerk

simple past tense and past participle of kneecap

Alternative spelling of knee pad

The person who carries out kneecapping.

plural of kneecapper

(in combinations) The state or quality of having a particular type of or number of knees.