beaver

(noun) the soft brown fur of the beaver. Synonyms: beaver fur.

(noun) a native or resident of Oregon. Synonyms: Oregonian, Beaver.

(noun) a full beard.

(noun) a man's hat with a tall crown; usually covered with silk or with beaver fur. Synonyms: dress hat, high hat, opera hat, silk hat, stovepipe, top hat, topper.

(noun) a movable piece of armor on a medieval helmet used to protect the lower face.

(noun) a hat made with the fur of a beaver (or similar material). Synonyms: castor.

(noun) large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges.

(verb) work hard on something. Synonyms: beaver away.