A portfire is a type of pyrotechnic device used to ignite fireworks or cannon. However, there are several synonyms that can be used in place of portfire such as fuse, igniter, flare, and matchstick. Fuses are a type of cord, made of cotton or another flammable material, used to ignite fireworks or explosives. Igniters are used to light the fuse or powder of an explosive device. Flares are used to create a bright light for signaling or illumination. Matchsticks are used to light a fire or other combustible material. While these synonyms have slightly different meanings, they can all be used interchangeably with portfire in certain contexts.