Crumble  [ kruhm-buhl ]

Synonyms:  break up, collapse, crush, decay, degenerate, deteriorate, disintegrate, dissolve, etc.              

Definition of Crumble

verb (used with object) crum·bled, crum·bling

         1. to break into small fragments or crumbs.

verb (used without object), crum·bled, crum·bling.

         2. to fall into small pieces; break or part into small fragments.

         3. to decay or disintegrate gradually:

             The ancient walls had crumbled.

noun

         4. a crumbly or crumbled substance.

         5. crumbles, bits of crisp bacon, bread, etc., added to other foods, especially as a topping.

Examples: