01 n. An exertion of strength or power, whether physical or mental, in performing an act or aiming at an object; more or less strenuous endeavor;…
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1.
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.“We prize the stronger effort of his power.” — Pope.
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2.
A force acting on a body in the direction of its motion.(Mech.)