propulsion
nounUK /prəˈpʌlʃən/
US /prəˈpʌlʃən/
The force that pushes something forward.
The rocket's propulsion sent it high into the sky.
OTHER MEANINGS
2. The act of driving or pushing something away.
The propulsion of the ball came from the player's strong kick.
3. A system or machine that makes something move forward.
The boat uses a jet propulsion system to go fast.
4. The process of moving something from one place to another by force.
Scientists study propulsion to build better spacecraft.