noun
    
    plural -murs
    
    [count] a low sound made when many people are speaking
    
    
    
    
    
    a quiet expression of an opinion or feeling
    
    
    
    
    
    
    
    
    
    speech or a way of speaking that is quiet and soft
    
    
    
    
    
    [singular] :a low, quiet, and continuous sound
    
    
    
    
    
    [count] medical :an unusual heart sound that may indicate a problem with the heart's function or structure - usually singular
    
    
    
    verb
    
    -murs; -mured; -muring
    
    [+ obj] :to say (something) in a quiet and soft voice
    
    
    
    
    
    [no obj] :to make a low, continuous sound