In the 'Pirates of the Caribbean' movies, Jack Sparrow uses his sword as a weapon on numerous occasions. Whether defending against other pirates or engaging enemies, Jack's sword is an extension of his unconventional fighting style and eccentric personality.
In addition to its use as a weapon, Jack also uses his sword as a tool on several occasions. For example, in one of the movies, he uses his sword to cut the rope that keeps him tied to a ship's mast in the middle of a storm. Overall, Jack Sparrow's sword is an integral part of his character and is one of the most iconic and recognizable weapons in cinema.