Noun
1. 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"2. use of physical or mental energy; hard work;
"he got an A for effort""they managed only with great exertion"3. 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"4. a notable achievement;
"he performed a great deed""the book was her finest effort"