- 电气化 diànqìhuà electrificationto electrify; electrification. Specifically refers to the conversion of systems such as railways or industries to use electricity as their power source.
- 电气石 diànqìshí tourmalineA silicate mineral that comes in many colors such as black, green, and red; beautiful varieties are known as [[碧玺|碧璽|bi4 xi3]] and are used as gemstones.
- 电气行刑椅 diànqìxíngxíngyǐ electric chairexecution device that causes death by electric shock
- 红电气石 hóngdiànqìshí rubellitethe red or pink variety of tourmaline
- 松下电气工业 sōngxiàdiànqìgōngyè Matsushita Electric IndustrialThe former name of the Japanese electronics corporation now known as Panasonic Corporation, also translated as Matsushita Electronics Industry
- 通用电气 tōngyòngdiànqì General ElectricGeneral Electric (GE); an American multinational conglomerate
- 电气工程 diànqìgōngchéng electrical engineering
- 电气工程师 diànqìgōngchéngshī electrical engineer