'Fore-topsail' definitions:

Definition of 'fore-topsail'

(from WordNet)
noun
The topsail on a foremast

Definition of 'Fore-topsail'

From: GCIDE
  • Fore-topsail \Fore`-top"sail\ (? or ?), n. (Naut.) the topsail on a foremast. See Sail. [1913 Webster + WordNet 1.5]