D defs.my
Entry 4 senses · 2 variants Webster, 1913

Crumb

/(krŭm)/ · IPA /kɹʌm/
01 n. A small fragment or piece; especially, a small piece of bread or other food, broken or cut off.
  1. 1.
    A small fragment or piece; especially, a small piece of bread or other food, broken or cut off.
    “Desiring to be fed with the crumbs which fell from the rich man's table.” — Luke xvi. 21.
  2. 2.
    Fig.: A little; a bit; as, a crumb of comfort.
  3. 3.
    The soft part of bread.
    “Dust unto dust, what must be, must; If you can't get crumb, you'd best eat crust.” — Old Song.
Phrases & compounds
Crumb brush — a brush for sweeping crumbs from a table.
To a crum — with great exactness; completely.
02 v. t. To break into crumbs or small pieces with the fingers; as, to crumb bread.
imp. & p. p. Crumbed; p. pr. & vb. n. Crumbing
  1. 1.
    To break into crumbs or small pieces with the fingers; as, to crumb bread.