1. 
   Gunwhale
   Naval The name (pronounced GUN'L) given to the uppermost line of planking of a boat's sides. In the old ships the upper tier of guns used to fire over the top planking which was therefore specially strengthened by 'whales'.
   Found op http://www.britishempire.co.uk/glossary/g.htm
   
   
2. 
   Gunwhale
   Top side of a boat.
   Found op http://www.go-sail.co.uk/dglossg.html
   
   

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