Definition of tun:
		
		
		(n) :
		
		a large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask; a fermenting vat
		
	 
 
 
	
		
		
		Definition of tun:
		
		
		(n) :
		
		a large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask; a fermenting vat