1.A boy; especially, a boy servant. (Obs.) "O murderous slumber, Lay'st thou thy leaden mace upon my boy That plays thee music? Gentle knave, good night."
2.Any male servant; a menial. (Obs.) "He's but Fortune's knave, A minister of her will."
3.A tricky, deceitful fellow; a dishonest person; a rogue; a villain. "A pair of crafty knaves." "In defiance of demonstration, knaves will continue to proselyte fools." Note: "How many serving lads must have been unfaithful and dishonest before knave which meant at first no more than boy acquired the meaning which it has now!"
4.A playing card marked with the figure of a servant or soldier; a jack; as, the knave of hearts.
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