beaver beaver /ˈbiːvɝ/

noun

1. Large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges  ( beaver )
   large semiaquatic rodent with webbed hind feet and a broad flat tail; construct complex dams and underwater lodges
    The beaver diligently worked on its dam in the stream.
   The beaver diligently worked on its dam in the stream.
   
   
2. A hat made with the fur of a beaver (or similar material)  ( beaver , castor )
   a hat made with the fur of a beaver (or similar material)
   
   
3. A movable piece of armor on a medieval helmet used to protect the lower face  ( beaver )
   a movable piece of armor on a medieval helmet used to protect the lower face
    Knights would often lower their beaver to protect their faces in battle.
   Knights would often lower their beaver to protect their faces in battle.
   
   
4. A man's hat with a tall crown; usually covered with silk or with beaver fur  ( beaver , dress hat , high hat , opera hat , silk hat , stovepipe , top hat , topper , stovepipe hat )
   a man's hat with a tall crown; usually covered with silk or with beaver fur
   
   
5. A full beard  ( beaver )
   a full beard
   
6. The soft brown fur of the beaver  ( beaver , beaver fur )
   the soft brown fur of the beaver
   

verb

1. [Informal] Work hard on something  ( beaver [Informal] , beaver away [Informal] , slave away )
   work hard on something
   

 Beaver

noun

1. A native or resident of Oregon  ( Beaver , Oregonian )
   a native or resident of Oregon