a resolving or determining; deciding; resolution; determination.

an effort - a) the using of energy to get something done; exertion of strength or mental power; b) a try, esp. a hard try; attempt; endeavour.

the quality of pursuing relentlessly and unflaggingly, in the face of opposition or interference, in achieving a goal; perseverance.

(rhet.) likening of two things of contrasting nature in such manner that the one is completely absorbed in the other.

an enterprising, energetic or vigorous person.