 
		
		Definition of warrant:
		
		
		(n) :
		
		Authorization or certification; sanction, as given by a superior; something that provides assurance or confirmation; a guarantee or proof: a warrant of authenticity; a warrant for success
		
 
								
				"he almost gives his failings as a warrant for his greatness (Garry Wills)."
			
			
	
		
		
		(v) :
		
		Justification for an action or a belief; grounds; to guarantee
		
 
								
				"circumstances arose that warranted the use of lethal force."