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effort

effort - noun

  1. The use of energy to do something: endeavor, exertion, pain(used in plural), strain, striving, struggle, trouble, while. Informal elbow grease. See work.
  2. A difficult or tedious undertaking: chore, task. Informal job. See heavy. work.
  3. A trying to do or make something: attempt, crack, endeavor, essay, go, offer, stab, trial, try. Informal shot. Slang take. Archaic assay. See try.
  4. Something completed or attained successfully: accomplishment, achievement, acquirement, acquisition, attainment, feat. See do.