1. Become broader or wider or more extensive
   "The road widened" 
2. Make (clothes) larger
   - let out 
3. Make wider
   "widen the road" 
4. Extend in scope or range or area
   "widen the range of applications"
   - broaden, extend

Derived forms: widened, widens, widening

See also: widening

Type of: alter, change, increase, modify, vary

Antonym: narrow

Encyclopedia: Widen Widen, Switzerland Widen, West Virginia

• optimize
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• optionally
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• Opuntia
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• or
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• or so