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1. Speak softly or indistinctly
   "She murmured softly to the baby in her arms"
    
2. Make complaining remarks or noises under one's breath
   "she murmurs when she feels overworked";
   - mutter, grumble, croak, gnarl [archaic], chunter [Brit, informal]

1. A low continuous indistinct sound; often accompanied by movement of the lips without the production of articulate speech
   - mutter, muttering, murmuring, murmuration, mussitation
    
2. A schwa that is incidental to the pronunciation of a consonant
   - murmur vowel
    
3. An abnormal sound of the heart; sometimes a sign of abnormal function of the heart valves
   - heart murmur, cardiac murmur
    
4. A complaint uttered in a low and indistinct tone
   - grumble, grumbling, murmuring, mutter, muttering

Derived forms: murmurs, murmuring, murmured

Type of: complain, complaint, kick [informal], kvetch [N. Amer, informal], moan, mouth, plain [archaic], schwa, shwa, sound, sound off, speak, symptom, talk, utter, verbalise [Brit], verbalize

Encyclopedia: Murmur