(n.) In a square-rigged vessel, the sail next above the lowermost sail on a mast. This sail is the one most frequently reefed or furled in working the ship. In a fore-and-aft rigged vessel, the sail set upon and above the gaff. See Cutter, Schooner, Sail, and Ship.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). topsail. Retrieved September 24, 2026, from http://smartdefine.org/topsail/definitions/2073326 |
| Chicago | Webster's. 2011. "topsail" http://smartdefine.org/topsail/definitions/2073326 (accessed September 24, 2026). |
| Harvard | Webster's 2011, topsail, Smart Define, viewed 24 September, 2026, <http://smartdefine.org/topsail/definitions/2073326>. |
| MLA | Webster's. "topsail" 28 May 2011. Web. 24 September 2026. <http://smartdefine.org/topsail/definitions/2073326> |