beat·er 
(bētər)
(bētər)n.
1. One that beats, especially a device for beating: a carpet beater.
2. A person who drives wild game from under cover for a hunter.
3. Offensive Slang A tight-fitting, white sleeveless undershirt.
4. Informal An old, dilapidated automobile.
[Sense 3, short for WIFEBEATER.]
- instigative
- instigator
- instil
- instill
- instillation
- instiller
- instillment
- instinct
- instinctive
- instinctively
- instinctual
- instinctually
- in stitches
- institute
- instituter
- institution
- institutional
- institutionalism
- institutionalist
- institutionalization
- institutionalize
- institutionally
- institutor
- in stock
- in store