Propulse vs. Propel — What's the Difference?

To repel; to drive off or away.

To cause to move forward or onward.

To repel; to drive off or away.

To cause to develop or progress

(transitive) To provide an impetus for motion or physical action, to cause to move in a certain direction; to drive forward.

To provide an impetus for non-physical change, to make to arrive to a certain situation or result.

To drive forward; to urge or press onward by force; to move, or cause to move; as, the wind or steam propels ships; balls are propelled by gunpowder.

Cause to move forward with force;

Give an incentive for action;