Noun

• S: (n) attempt, effort, endeavor, endeavour, try (earnest and conscientious activity intended to do or accomplish something) "made an effort to cover all the reading material"; "wished him luck in his endeavor"; "she gave it a good try"
• S: (n) effort, elbow grease, exertion, travail, sweat (use of physical or mental energy; hard work) "he got an A for effort"; "they managed only with great exertion"
• S: (n) feat, effort, exploit (a notable achievement) "he performed a great feat"; "the book was her finest effort"
• S: (n) campaign, cause, crusade, drive, movement, effort (a series of actions advancing a principle or tending toward a particular end) "he supported populist campaigns"; "they worked in the cause of world peace"; "the team was ready for a drive toward the pennant"; "the movement to end slavery"; "contributed to the war effort"