What does 发动 (fādòng) mean in English?

Card 407HSK Level 2407/2021
CARD407
PROGRESS20%
发动
發動
fādòng
start; launch; arouse(Verb)
Click to reveal
← Previous↑ DeckNext →

Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d