 
		
		Definition of jack:
		
		
		(n) :
		
		a mechanical 
device used to 
raise and (temporarily) support a heavy object; (
playing cards) The card ranking between the 
ten and 
queen of any suit, with a picture of a knave or prince on its face; often with value 11
		
 
								
				"car jack"
			
			
	
		
		
		(v) :
		
		to use a jack; (slang) To hit the ball hard
		
								
				"he jacked the car up so that he could replace the brake pads."
			
			
	
		
		
		(interjection) :
		
		(slang) A player has hit a home run
		
								
				"jack! Tie score."