adjective
    
    always used before a noun
    
    of or relating to the sea or the plants and animals that live in the sea
    
    
    
    
    
    
    
    
    
    of or relating to sailing on the sea or doing business (such as trading) by sea
    
    
    
    
    
    noun
    
    or Marine  , pl -rines
    
    [count] :a member of the U.S. Marine Corps or the British Royal Marines
    
    
    
    
    
    
    
    
    
    the Marines
    
    the part of a country's military forces that includes soldiers who serve on a ship or are closely associated with a naval force :the U.S. Marine Corps or the British Royal Marines