/ef"euhrt/ , n.
1. exertion of physical or mental power: It will take great effort to achieve victory.
2. an earnest or strenuous attempt: an effort to keep to the schedule.
3. something done by exertion or hard work: I thought it would be easy, but it was an effort.
4. an achievement, as in literature or art: The painting is one of his finest efforts.
5. the amount of exertion expended for a specified purpose: the war effort.
6. Chiefly Brit.
a. an organized community drive or achievement.
b. a fund-raising drive.
7. Mech. the force or energy that is applied to a machine for the accomplishment of useful work.
[ 1480-90; esfort, esforz, deriv. of esforcier to force ( es- EX- 1 + forcier to FORCE) ]
Syn. 1. struggle, striving. EFFORT, APPLICATION, ENDEAVOR, EXERTION imply actions directed or force expended toward a definite end. EFFORT is an expenditure of energy to accomplish some objective: He made an effort to control himself. APPLICATION is continuous effort plus careful attention: constant application to duties. ENDEAVOR means a continued and sustained series of efforts to achieve some, often worthy and difficult, end: a constant endeavor to be useful. EXERTION is the vigorous and often strenuous expenditure of energy, frequently without an end: out of breath from exertion.