 
		
		Definition of double:
		
		
		(adj) :
		
		made up of two matching or complementary elements; twice the quantity
		
								
				"the closet has double doors."
			
			
	
		
								
				"the company doubled their earnings per share over last quarter."
			
			
	
		
		
		(n) :
		
		twice the number, amount, size, etc; a person who resembles and stands in for another person, often for safety purposes
		
								
				"saddam Hussein was rumored to have many doubles."