What is "topmasts"

Usage examples of "topmasts".

The topmasts now followed, whereupon the fore, main, and mizzenmasts were cut into suitable lengths for handling and for use as lumber ashore.

When the lower mast, the topmasts, and the royals were sawn and split, the principal pieces of the raft were ready.

They would not know that men carefully tended the smoke-rich fires, or that the topmasts, guns and sails were held safe ashore.