Meaning of 'beaver'

noun

large semiaquatic rodent with webbed hind feet and a broad flat tail

noun

a hat made with the fur of a beaver (or similar material)

Synonyms: castor

noun

a movable piece of armor on a medieval helmet used to protect the lower face

noun

a man's hat with a tall crown

Example: "usually covered with silk or with beaver fur"

Synonyms: dress hat

noun

a full beard

noun

the soft brown fur of the beaver

Synonyms: beaver fur

verb

to work hard on something

Example: "I beavered all day at my project."

Synonyms: beaver away