n.
1.the essential qualities or characteristics by which something is recognized
2.a causal agent creating and controlling things in the universe
3.the natural physical world including plants and animals and landscapes etc.
4.the complex of emotional and intellectual attributes that determine a person's characteristic actions and reactions
5.a particular type of thing
Idiom of the Day
beat one's head against the wall
to waste one's time trying to do something that is hopeless
I was beating my head against the wall to try and convince my friend to come to the restaurant.