murmuring (Adjective) — Making a low continuous indistinct sound. ex. "like murmuring waves"
murmuring (Noun) — A low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech.
murmuring (Noun) — A complaint uttered in a low and indistinct tone.
murmuring (Verb) — Speak softly or indistinctly. ex. "She murmured softly to the baby in her arms"
murmuring (Verb) — Make complaining remarks or noises under one's breath. ex. "she murmurs when she feels overworked"