Longman Dictionary of Contemporary English homepage

Topic: COLOURS AND SOUNDS

Date: 1800-1900
Origin: cranch 'to crunch' (17-19 centuries), probably from the sound; influenced by munch

crunch

2 verb
     
crunch2
1 [intransitive]C to make a sound like something being crushed:
Their boots crunched loudly on the frozen snow.
2 [intransitive always + adverb/preposition, transitive] to eat hard food in a way that makes a noise
crunch on
The dog was crunching on a bone.
3

crunch (the) numbers

to do a lot of calculations in order to find an answer:
The computer will crunch all the numbers to determine the final score.
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