verb
    
    /ˈswɛl/  swells; swelled; swelled or swollen /ˈswoʊlən/; swelling
    
    [no obj] :to become larger than normal
    
    
    
    
    
    [+ obj] :to make (something, such as a river) larger or more full than normal
    
    
    
    to increase in size or number [no obj]
    
    
    
    
    
    
    
    [no obj] :to become louder
    
    
    
    to cause (something, such as a sail) to stretch outward and become full [+ obj]
    
    
    
    
    
    [no obj] :to feel an emotion strongly - + with
    
    
    
    a swelled head
    
    
    
    noun
    
    plural swells
    
    [count] :an upward and downward movement of the water in the sea
    
    
    
    [noncount] :the curved or rounded shape of something
    
    
    
    [singular] an increase in size or number
    
    
    
    an increase in loudness
    
    
    
    an increase in the strength of an emotion
    
    
    
    [count] informal + old-fashioned :a socially important or fashionable person
    
    
    
    adjective
    
    US informal + old-fashioned :very good :excellent