Definitions
1.nounA small piece which breaks off from baked food (such as cake, biscuit or bread)."The pigeons were happily pecking at crumbs of bread on the ground."
2.nounA small piece of other material, such as rubber.
3.nounA bit, small amount."a crumb of comfort"
4.nounThe soft internal portion of bread, surrounded by crust.
5.nounA mixture of sugar, cocoa and milk, used to make industrial chocolate.
6.nounA nobody; a worthless person.
7.nounA body louse (Pediculus humanus).
8.verbTo cover with crumbs.
9.verbTo break into crumbs or small pieces with the fingers; to crumble."to crumb bread"