Pronunciation (AU) (UK) (Canada) IPA (key): /niːʃ/ (US) IPA (key): /nɪt͡ʃ/ or /niʃ/ or /nɪʃ/ Audio (UK)(file) Audio (US)(file) Audio (US)(file) Audio (AU)(file) Noun Singular niche Plural niches A niche is a good opportunity in the market for a specific kind of service.Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads