Noun topgallant has 2 senses
  1. topgallant, topgallant sail - a sail set on a yard of a topgallant mast
    --1 is a kind of sail, canvas, canvass, sheet
  2. topgallant, topgallant mast - a mast fixed to the head of a topmast on a square-rigged vessel
    --2 is a kind of topmast
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