world
noun(world)
people in general; especially a distinctive group of people with some shared interest
Examples:
The Western world. 
world
noun(world)
people in general considered as a whole
world
noun(world)
all of your experiences that determine how things appear to you
Examples:
His world was shattered. 
We live in different worlds. 
world
noun(world)
the 3rd planet from the sun; the planet we live on
Examples:
He sailed around the world. 
world
adjective(world)
involving the entire earth; not limited or provincial in scope
Examples:
A world crisis. 
Of worldwide significance. 
world
noun(world)
the concerns of this life as distinguished from heaven and the afterlife
Synonyms: earth, earthly concern, worldly concern, 
 Examples:
They consider the church to be independent of the world. 
world
noun(world)
everything that exists anywhere
world
noun(world)
all of the living human inhabitants of the earth
Examples:
All the world loves a lover. 
world
noun(world)
a part of the earth that can be considered separately
Examples:
The outdoor world. 
The world of insects.