Definition of fitch in US English:

fitch

noun

  • 1

    old-fashioned term for polecat
    1. 1.1 The fur of a polecat.
      • ‘As fashion has readmitted fur, designers have continued to steer clear of old-fashioned pelts, preferring to woo fur virgins with fitch, wolf and coyote.’

Origin

Late Middle English (denoting the fur of a polecat): from Middle Dutch visse ‘polecat’. Compare with fitchew.

Pronunciation

fitch

/fiCH//fɪtʃ/