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

Requiring or showing effort.

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

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

plural of 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.

simple past tense and past participle of make an effort