Keen(n.) A prolonged wail for a deceased person. Cf. Coranach.
    
    
    
        Keen(superl.) Sharp; having a fine edge or point; as, a keen razor, or   a razor with a keen edge.
    
    
    
        Keen(superl.) Acute of mind; sharp; penetrating; having or expressing   mental acuteness; as, a man of keen understanding; a keen look; keen   features.
    
    
    
        Keen(superl.) Bitter; piercing; acrimonious; cutting; stinging;   severe; as, keen satire or sarcasm.
    
    
    
        Keen(superl.) Piercing; penetrating; cutting; sharp; -- applied to   cold, wind, etc, ; as, a keen wind; the cold is very keen.
    
    
    
        Keen(superl.) Eager; vehement; fierce; as, a keen appetite.
    
    
    
        Keen(v. i.) To wail as a keener does.
    
    
    
        Keen(v. t.) To sharpen; to make cold.
    
    
    
        Keenly(adv.) In a keen manner.
    
    
    
        Keenness(n.) The quality or state of being keen.
    
    
    
    Words within keens