Bedeutung von “crumble” — Learner’s Dictionary

crumble

verb us uk /ˈkrʌmbl/
BREAK [ I, T ]

to break into small pieces, or to make something break into small pieces:

Buildings crumbled as the earthquake struck.
FAIL [ I ]

If a relationship, system, or feeling crumbles, it fails or ends:

His first marriage crumbled after only a year.

(Definition von “crumble” aus dem Cambridge Learner's Dictionary © Cambridge University Press)