Word parts news + letter Pronunciation (US) IPA (key): /ˈn(j)uzˌlɛtɚ/ (UK) IPA (key): /ˈnjuːzˌlɛtə/ Audio (US)(file) Noun Singular newsletter Plural newsletters (countable) A newsletter is a publication issued periodically towards a targeted audience. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads