mainmast

Dolphin pulled past them and assaulted the outside schooner, her guns taking out the 'mainmast' .

He saw how close to the 'mainmast' the commodore was and grinned suddenly.

‘Look,’ Rueben said, and turned, pointing up to the top of the 'mainmast' , at the crow's next.

Its gun-ports were visible even at this distance, and a flag, unidentifiable, waved defiantly atop the 'mainmast' .

The 'mainmast' groaned slightly under the strain of the wind-filled sails.