|Origin:||cranch 'to crunch' (17-19 centuries), probably from the sound; influenced by munch|
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
The dog was crunching on a bone.
to do a lot of calculations in order to find an answer:
The computer will crunch all the numbers to determine the final score.