Murmur vs. Mumble — What's the Difference?

A low, indistinct, continuous sound

To utter indistinctly by lowering the voice or partially closing the mouth

An indistinct, whispered, or confidential complaint; a mutter.

To chew slowly or ineffectively without or as if without teeth.

(Medicine) An abnormal sound, usually emanating from the heart, that sometimes indicates a diseased condition.

To speak words indistinctly, as by lowering the voice or partially closing the mouth.

To make a low, continuous, indistinct sound or succession of sounds.

To chew food slowly or ineffectively, as if with the gums.

To complain in low mumbling tones; grumble.

A low indistinct sound or utterance.

To say in a low indistinct voice; utter indistinctly

To speak unintelligibly or inaudibly; to fail to articulate.

Any low, indistinct sound, like that of running water.

To chew something gently with closed lips.

Soft indistinct speech.

A quiet or unintelligible vocalization; a low tone of voice.

The sound made by any condition which produces noisy, or turbulent, flow of blood through the heart.

To speak with the lips partly closed, so as to render the sounds inarticulate and imperfect; to utter words in a grumbling indistinct manner, indicating discontent or displeasure; to mutter.

A muttered complaint or protest; the expression of dissatisfaction in a low muttering voice; any expression of complaint or discontent.

To chew something gently with closed lips.

To grumble; to complain in a low, muttering voice, or express discontent at or against someone or something.

To utter with a low, inarticulate voice.

(intransitive) To speak or make low, indistinguishable noise; to mumble, mutter.

To chew or bite gently, as one without teeth.

(transitive) To say (something) indistinctly, to mutter.

To suppress, or utter imperfectly.

A low, confused, and indistinct sound, like that of running water.

Talk indistinctly; usually in a low voice

A complaint half suppressed, or uttered in a low, muttering voice.

Grind with the gums; chew without teeth and with great difficulty;

To make a low continued noise, like the hum of bees, a stream of water, distant waves, or the wind in a forest.

To utter complaints in a low, half-articulated voice; to feel or express dissatisfaction or discontent; to grumble; - often with at or against.

To utter or give forth in low or indistinct words or sounds; as, to murmur tales.

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

A schwa that is incidental to the pronunciation of a consonant

An abnormal sound of the heart; sometimes a sign of abnormal function of the heart valves

A complaint uttered in a low and indistinct tone

Speak softly or indistinctly;

Make complaining remarks or noises under one's breath;