How do you define the term 'world'?

The English Word "world" can refer to a number of things:

1)all matter and energy in the space-time continuum; universe; nature; cosmos

2)the universe seen as the product of divine activity; creation

3)the earth

4)all living things which inhabit the earth

5)all the people that live on the earth; mankind; the human race

6)a particular area of the earth's land surface seen as an arena of human activity

7)a particular period in human history

8)a field of human activity or interest; a line of work; a profession

9)the concerns and pleasures in this present state of physical existence as opposed to spiritual, moral, or religious concerns

10)the people devoted to the concerns and pleasures in this present state of physical existence as opposed to spiritual, moral, or religious concerns