Crossword clue: a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
speak softly or indistinctly
a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech