a square sail carried on a yard set on a topmast
WordReference Random House Learner's Dictionary of American English © 2026
top•sail /ˈtɑpˌseɪl/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- Nautical, Naval Termsa sail, or either of a pair of sails, set immediately above the lowermost sail of a mast and supported by a topmast.
top•sail
(top′sāl′; Naut. top′səl),USA pronunciation n. [Naut.]
- a sail, or either of a pair of sails, set immediately above the lowermost sail of a mast and supported by a topmast. See diag. under ship.
- Middle English topseil. See top1, sail 1350–1400
Collins Concise English Dictionary © HarperCollins Publishers::
'topsail' also found in these entries (note: many are not synonyms or translations):
caïque
- club
- donkey topsail
- fore-and-aft topsail
- fore-topsail
- foreyard
- gaff topsail
- gaff-topsail catfish
- jackyard
- jumbo
- light
- lugger topsail
- main-topsail
- main-topsail schooner
- maintopsail
- raffee
- schooner
- sloop
- sloop rig
- topmast
- topsail schooner