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
break the back of (something)
to reduce the power of something
The company tried very hard to break the back of the union.