effort
noun
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”
use of physical or mental energy; hard work
“he got an A for effort”
“they managed only with great exertion”
a notable achievement
“he performed a great feat”
“the book was her finest 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”
Source: WordNet 3.1, Princeton University
