i Register
In some senses, crumb is marked as figuratively. Watch for register when choosing this word.
ADJ
biscuit, bread (also breadcrumb), cake
VERB + CRUMB
brush (away), sweep (away)
We swept away the bread crumbs after finishing breakfast.
drop, scatter
The cookies were so dry that crumbs dropped all over the kitchen floor.
PREP
~ of
She brushed a few crumbs of cake off her lap after eating dessert.