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"
a notable achievement
"he performed a great feat"
"the book was her finest effort"
use of physical or mental energy
"he got an A for effort"
"they managed only with great exertion"
- elbow grease
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"