The work involved in performing an activity; exertion. / An endeavor. / A force acting on a body in the direction of its motion.

(uncommon, intransitive) To make an effort. / (obsolete, transitive) To strengthen, fortify or stimulate

plural of effort

(psychology) subjective experience of exertion or effort involved in performing an activity

Requiring or showing effort.

present participle of effort

simple past tense and past participle of effort

(humorous, often sarcastic) An expression indicating that an attempted action or undertaking failed, but the effort in the attempt was admirable (enough so to be ranked highest, as A)

The distance from the effort on a lever to the fulcrum.

The point through which the resultant of all the wind forces on a sailing vessel's sails is assumed to act.