Knave
Part of speech: noun
Definition: A tricky, deceitful fellow; a dishonest person; a rogue; a villain. A playing card marked with the figure of a servant or soldier; a jack. A boy; especially, a boy servant. Any male servant; a menial.
Example sentence: No man is so much a fool as not to have wit enough sometimes to be a knave; nor any so cunning a knave as not to have the weakness sometimes to play the fool.
Jack
Part of speech: verb
Definition: To use a jack.To hit the ball hard.To hit a home run.To steal.
Part of speech: interjection
Definition: A player has hit a home run
Part of speech: noun
Definition: A mechanical device used to raise and (temporarily) support a heavy object.A man or men in general.A male animal.The card ranking between the ten and queen of any suit, picturing a knave or prince on its face, and in some card games having a value of eleven.A male ass.A surface-mounted connector for electrical, especially telecommunications, equipment.A target ball in bowls, etc; a jack-ball.A small, six-pointed playing piece used in the game of jacks.Nothing, jackshit.A small flag at the bow of a ship.A naval ensign flag flown from the main mast, mizzen mast, or the aft-most major mast of (especially) British sailing warships; Union Jack.A coarse and cheap medieval coat of defense, especially one made of leather.A penny with a head on both sides, used for cheating. (Reference: Sidney J. Baker, The Australian Language, second edition, 1966, chapter XI section 3, page 243.)Money.A smooth often ovoid large gravel or small cobble in a natural water course.A common name for the freshwater pike, green pike or pickerel.Large California rockfish.An order of marine fish in the Carangidae family.A sailor; a "jack tar".