mainsail
Concise Oxford English Dictionary © 2008 Oxford University Press:
mainsail /ˈmeɪnseɪl, -s(ə)l/
▶noun the principal sail of a ship.
■ the sail set on the after part of the mainmast in a fore-and-aft rigged vessel.
'mainsail' also found in these Oxford entries:
Bermuda rig
- cutter
- headboard
- hermaphrodite brig
- main
- main course
- mainsheet
- sloop
- spinnaker

