We found one dictionary that defines the word noise words:

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1. noise words: Wiktionary

Opposite: silent words, quiet words, hushed words ▸ Words similar to noise words ▸ Usage examples for noise words ▸ Idioms related to noise words ▸ Wikipedia articles (New!) ▸ Words that often appear near noise words ▸ Rhymes of noise words ▸ Invented words related to noise words