inflected forms: crumbles; crumbled; crumbling
1 [with object] : to break (something) into small pieces • Crumblethe cookies into small bits. • The recipe calls for the herbs to becrumbled.
2 [no object] : to separate into many small pieces : to fall apart • The arch had crumbled [=disintegrated] under the weight of all those stones. • bones so old they had crumbled to dust •crumbling buildings/monuments/walls
3 [no object] : to break down completely : to stop functioning • Peace talks between the two parties have crumbled. [=collapsed] • She was extremely depressed after her marriage crumbled. • theircrumbling marriage
Learn about crumble as a noun.