Definition of crumble verb from the Oxford Advanced American Dictionary

     

    crumble

     verb
    verb
    NAmE//ˈkrʌmbl//
     
    Verb Forms present simple I / you / we / they crumble
     
    he / she / it crumbles
     
    past simple crumbled
     
    -ing form crumbling
     
     
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  1. 1[intransitive, transitive] to break or break something into very small pieces Rice flour makes the cake less likely to crumble. crumble something Crumble the cheese over the salad.
  2. 2[intransitive] if a building or piece of land is crumbling, parts of it are breaking off buildings crumbling into dust crumbling stonework The cliff is gradually crumbling away. They live in a crumbling old mansion.
  3. 3[intransitive] to begin to fail or get weaker or to come to an end a crumbling business/relationship crumble away All his hopes began to crumble away. crumble into/to something The empire finally crumbled into dust.
  4. Idioms
    that's the way the cookie crumbles(informal)
     
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    that is the situation and we cannot change it, so we must accept it