n.
Pronunciation: ' kr ə m-b ə l
Function: verb
Inflected Form: crum · bled ; crum · bling \ -b( ə -)li ŋ \
Etymology: alteration of Middle English kremelen, frequentative of Old English gecrymian to crumble, from cruma
Date: 1547
transitive verb : to break into small pieces
intransitive verb
1 : to fall into small pieces : DISINTEGRATE
2 : to break down completely : COLLAPSE <marriages crumble >