We found 3 definitions of topmasts from 2 different sources.
NounPlural: topmasts |
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topmast - the mast next above a lower mast and topmost in a fore-and-aft rig | ||
mast a vertical spar for supporting sails | ||
fore-topmast the topmast next above the foremast | ||
main-topmast the topmast next above the mainmast | ||
royal mast topmast immediately above the topgallant mast |