1. 
   gaff topsail
   [n] - a triangular fore-and-aft sail with its foot along the gaff and its luff on the topmast
   Found op http://www.webdictionary.co.uk/definition.php?query=gaff%20topsail
   
   
2. 
   gaff topsail
   fore-and-aft topsail noun a triangular fore-and-aft sail with its foot along the gaff and its luff on the topmast
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=gaff%20topsail
   
   
3. 
   Gaff Topsail
   A triangular sail set over a gaff.
   Found op http://www.seadercraft.com/sailing_glossary.html
   
   
4. 
   Gaff-topsail
   Gaff`-top'sail noun (Nautical) A small triangular sail having its foot extended upon the gaff and its luff upon the topmast.
   Found op http://www.encyclo.co.uk/webster/G/2
   
   
5. 
   Gaff-topsail
   • (n.) A small triangular sail having its foot extended upon the gaff and its luff upon the topmast.
   Found op http://thinkexist.com/dictionary/meaning/gaff-topsail/
   
   
6. 
   Gaff-Topsail
   The gaff-topsail is a sail set above a gaff sail on a sailing vessel.
   Found op http://www.probertencyclopaedia.com/browse/RG.HTM
   
   

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