 
		
		Definition of dun:
		
		
		(n) :
		
		a brownish grey colour; a collector of debts
		
								
				"Melancholy duns came looking for him at all hours", G. Orwell, Down and Out in Paris and London, Ch. 18
			
			
	
		
		
		(adj) :
		
		of a brownish grey colour
		
			
	
		
		
		(v) :
		
		to ask or beset a debtor for payment
		
								
				"no wonder she is in a bad mood, since she did nothing but dun customers all day."