say it: kruhm
crumb is a noun and verb meaning "a very small quantity of something". It carries 6 recorded senses.
a very small quantity of something
“he gave only a crumb of information about his plans”
“there were few crumbs of comfort in the report”
small piece of e.g. bread or cake
break into crumbs
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for crumb come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.