Pyrotechnic/ˌpaɪrəˈteknɪk/ Definition 1 of 4Pro Tip 1/2Event-Related Usage Used to describe events that end with firework celebrations. The festival's pyrotechnic finale amazed everyone. Pro Tip 2/2Celebratory Context Often associated with joyous occasions like New Year's Eve and national holidays. The city's New Year's pyrotechnic display is famous.