开启

Traditional (Taiwan): 開啟

On the HSK 7-9 vocabulary list, at CEFR level C2.

kāiqǐ ㄎㄞㄑㄧˇ

- to start to begin to initiate (an era, process, journey etc)
- to enable (a feature)
  computing
- to start operating automatically to self-initiate
  of a system or device
- to open (sth that has been sealed)

Character by character

Sources