1) Craft 2) Pyrotechnics 3) Trade 
• (n.) The use and application of fire in science and the arts. • (n.) Same as Pyrotechnics.
Pyr`o·tech`ny noun [ Confer French pyrotechnie .] 1. The use and application of fire in science and the arts. [ Obsolete] Sir M. Hale. 2. Same as Pyrotechnics . 
pyrotechny 1. Military, the manufacture and use of gunpowder, bombs, fire-arms, etc. 2. The making and managing of fireworks for scenic display, for military use, or as signals, etc.