A tube or casing filled with combustible matter, by means of which a charge of powder is ignited, as in blasting; -- called also fuzee. See Fuze.

a mechanism in a bomb, torpedo, rocket, or artillery shell, usually having an easily detonated explosive charge and activated by the shock of impact, which detonates the main explosive charge. Some fuses may have timing mechanisms, delaying the explosion for a short time, or up to several days after impact. Fuses activated by other mechanisms more sophisticated than impact, such as proximity or heat, are used in modern weapons such as antiaircraft or antimissile missiles.

A slow-burning pyrotechnic normally used to delay the initiation of a detonator.

The part of a firework you light, which then burns slowly to allow you time to "retire" (get away!) before the firework starts. Internal fuses link various parts of the firework and can burn very quickly. All public fireworks normally only have ONE main fuse.

any igniter that is used to initiate the burning of a propellant

The fuse transfers combustion from the source - a portfire or pyrotechnic igniter - to the compound inside the firework. Shop goods use Blue Touchpaper but display fireworks often have naked match, or the touchpaper is removed and another fuse inserted. Individual fireworks are then connected together in sequences with timing created by the use of fast or slow fuses and delays. Another common fuse is igniter cord, especially green or slow, which is used for leaders. A pyrotechnic fuse, also known as a pyrotechnic igniter or electric match, is a fuse ignited by an electric current. Sometimes incorrectly referred to as a 'detonator', and known in the US as a squib.

Used to ignite fireworks. Different types of fuse have different burn times per inch.