mainsail
n. கப்பலின் முக்கிய பாய்.
Main"sail`, n. (Naut.) Defn: The principal sail in a ship or other vessel. [They] hoised up the mainsail to the wind. Acts xxvii. 40. Note: The mainsail of a ship is extended upon a yard attached to the mainmast, and that of a sloop or schooner upon the boom.