Definition of auk
The word auk uses 3 letters:aku.
AUK is playable in:
n. - A name given to various species of arctic sea birds of the family Alcidae. The great auk, now extinct, is Alca (/ Plautus) impennis. The razor-billed auk is A. torda. See Puffin, Guillemot, and Murre. 2