Effort

An exertion of strength or power, whether physical or mental, in performing an act or aiming at an object; more or less strenuous endeavor; struggle directed to the accomplishment of an object; as, an effort to scale a wall.

A force acting on a body in the direction of its motion.

To stimulate.

a series of actions advancing a principle or tending toward a particular end; "he supported populist campaigns"; "they worked in the cause of world peace"; "the team was ready for a drive toward the pennant"; "the movement to end slavery"; "contributed to the war effort"

use of physical or mental energy; hard work; "he got an A for effort"; "they managed only with great exertion"

a notable achievement; "he performed a great feat"; "the book was her finest effort"