What do a.m. and p.m. stand for?


[meyn-seyl; Nautical meyn-suh l] /ˈmeɪnˌseɪl; Nautical ˈmeɪn səl/
noun, Nautical
the lowermost sail on a mainmast.
Origin of mainsail
late Middle English
1425-75; late Middle English; see main1, sail Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for mainsail
  • Kathryn carries the standard skipjack rig or a jib-headed mainsail and a large jib.
  • Number of sails, color of mainsail with lettering or design appearing thereon.
  • It broke off about eight feet from the deck, and with it went the main boom, mainsail and gaff topsail.
  • Finally, with a storm-reefed mainsail and her trysail set as a jib, she shot away.
  • The mainsail is usually managed with a spar on the underside called a boom.
British Dictionary definitions for mainsail


/ˈmeɪnˌseɪl; nautical ˈmeɪnsəl/
(nautical) the largest and lowermost sail on the mainmast
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
mainsail in Technology
The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source

Word of the Day

Difficulty index for mainsail

Few English speakers likely know this word

Word Value for mainsail

Scrabble Words With Friends