(n) use of physical or mental energy; hard work, Syn. travail, sweat, exertion, elbow grease, Example:he got an A for effort; they managed only with great exertion
n. [ F. effort, OF. esfort, for esfors, esforz, fr. esforcier. See Efforce. ] 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. [ 1913 Webster ]
We prize the stronger effort of his power. Pope. [ 1913 Webster ]
2. (Mech.) A force acting on a body in the direction of its motion. Rankine.