The term FIRECRACKER PART is composed of two words, FUSE and CRACKER. FUSE is a four-letter word which refers to a device that is used to ignite an explosive or flammable material. It is usually made of a metal wire or strip that melts when heated, allowing electricity to flow through it and ignite the material. CRACKER is a seven-letter word which refers to a type of firework that produces a loud bang when ignited. Firecrackers are typically cylindrical in shape and contain a small amount of gunpowder or other explosive material. When lit, the firecracker releases a loud bang and a bright flash of light. Together, FUSE and CRACKER make up the term FIRECRACKER PART, which refers to the components of a firecracker that are used to ignite it.