WordWeb Online

1. Fall apart
   "the building crumbled after the explosion"
   - crumple, tumble, break down, collapse
    
2. Break or fall apart into fragments
   "The cookies crumbled"; "The Sphinx is crumbling"
   - fall apart
    
3. Fall into decay or ruin
   - decay, dilapidate

1. A baked fruit pudding topped with a crumbly mixture of flour and fat (and possibly other things, e.g. oats)

Derived forms: crumbled, crumbles, crumbling

See also: fall

Type of: change, change integrity, disintegrate

Encyclopedia: Crumble