crumb

A 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.

desiring to be fed with the crumbs which fell from the rich man's table

A small piece of any other solid substance.

Then erase any pencil lines with a good, soft eraser, rubbing gently, in only one direction. A dustbrush can be useful in removing any eraser crumbs.

A bit, small amount.

a crumb of comfort

Ellipsis of crumb rubber.

Production of rubber granules, or crumb, is well-established in this country.

The soft internal portion of bread, surrounded by crust.

Dust unto dust, what must be, must; / If you can't get crumb, you'd best eat crust.

To cover with crumbs.

To break into crumbs or small pieces with the fingers; to crumble.

to crumb bread

A surname.