<p><strong>Noun</strong></p><ul><li>exertion of physical or mental power: It will take great effort to achieve victory.</li><li>Synonyms: striving, struggle.</li><li>an earnest or strenuous attempt: an effort to keep to the schedule.</li><li>something done by exertion or hard work: I thought it would be easy, but it was an effort.</li><li>an achievement, as in literature or art: The painting is one of his finest efforts.</li><li>the amount of exertion expended for a specified purpose: the war effort.</li><li>Chiefly British: an organized community drive or achievement; a fund-raising drive.</li><li>Mechanics: the force or energy that is applied to a machine for the accomplishment of useful work.</li></ul>