What are the best answers for “making a low continuous indistinct sound”?

murmuring, susurrant, whispering.

How many letters does the top answer for “making a low continuous indistinct sound” have?

The most common answer is murmuring (9 letters).

3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

murmuring 9 letters wn-def

a low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech

susurrant 9 letters wn-def

making a low continuous indistinct sound

whispering 10 letters wn-def

speaking softly without vibration of the vocal cords