burr 3 also bur 
(bûr)
(bûr)n.
A washer that fits around the smaller end of a rivet.
[Middle English burre, ring, disk, alteration of burwhe, circle, disk.]
- curse
- cursed
- cursedly
- cursedness
- curser
- threatener
- threatening
- threateningly
- three
- Three Age system
- three-bagger
- three-base hit
- three-card monte
- three-color
- three-D
- three-decker
- three-dimensional
- three-gaited
- three-legged race
- Three Mile Island
- three-mile limit
- three-peat
- threepence
- threepenny
- three-piece