What is the meaning of the word "gaff-headed sail"?

Definitions:

  1. A four-sided fore-and-aft sail set behind the mast, supported by a gaff, which is a spar that extends from the mast to the top of the sail. copy to clipboard NOUN
    • The fishing boat's gaff-headed sail allowed it to harness the wind efficiently. copy to clipboard
  2. A type of sail used in sailling vessels, characterized by its shape and rigging. copy to clipboard NOUN
    • Adjusting the gaff-headed sail requires skill to balance the boat's handling. copy to clipboard

Synonyms: