craunch noun 2verb 1forms 3 noun2 •A portion of a stratum or vein left in excavating to support the roof. •(no longer used) A grinding or crunching sound.He sat down to write, and occupied himself with certain papers, until there was a far-off sound of wheels: some vehicle was slowly entering the great gates; a craunch upon the gravel sweep. — 1867 verb1 •(no longer used) To crush with the teeth; to chew with violence and noise; to crunch. formscraunched · craunching · craunches