Port-fire is a type of firework that emits bright sparks and flames. However, there are several synonyms for port-fire, which are the different names used to refer to the same type of firework. Some of the other words used as synonyms for port-fire are torches, flares, signal lights, and fuses. Each of these has a slightly different meaning or use, but all of them are similar in that they produce light or flame to signal something. Regardless of the word used to describe it, port-fire remains a timeless and traditional firework that is still a popular choice for celebrations and special events.