noun
- plural of mainsail; the principal sails on the mainmasts of sailing vessels
Usage: nautical
Examples
- The crew hoisted the mainsails as the wind picked up.
- Both mainsails were torn during the storm.
- The yacht’s mainsails caught the breeze perfectly.
- They repaired the mainsails before setting sail again.
- The mainsails billowed out as they left the harbor.
- Strong winds required them to reef the mainsails.