To crunch, crush, or grind something noisily with the teeth or under foot; to make a loud crunching sound.
From Middle English craunche, likely from Old French cranche (crunch). It's related to crunch but is an older, more dialectal or archaic form still found in some English-speaking regions.
Craunch is delightfully onomatopoetic—the word itself sounds like what it describes, and it survives in Scottish and Northern English dialects where people still use it for crunching food or stepping on gravel.
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