HSK 6
发动
fādòng动
to start; to launch; to unleash; to mobilize
司机发动汽车准备出发。
Sī jī fā dòng qì chē zhǔn bèi chū fā.
The driver started the car and prepared to leave.
Say it
Hold the button, say it, then let go.
Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 6.