Definition of single:
		
	
		
								
				"can you give me a single reason not to leave right now?"
			
			
	
		
								
				"he went to the party, hoping to meet some friendly singles there."
			
			
	
		
		
		(v) :
		
		to 
identify or 
select one member of a 
group from the others; generally used with 
out, either to single out or to single (something) out; to get a 
hit that advances the 
batter exactly one 
base
		 
								
				"eddie singled out his favorite marble from the bag."