1. s. (with "the") Human collective existence; existence in general.
There will always be lovers, till the world’s end.
2. s. The Universe.
3. s. (with "the") The Earth.
People are dying of starvation all over the world.
4. s. A planet, especially one which is inhabited or inhabitable.
Our mission is to travel the galaxy and find new worlds.
5. s. (by extension) Any other body, astronomical body which many be inhabitable, such as a satellite, natural satellite.
6. s. A very large extent of country.
the New World
7. s. (fiction, speculation) A realm, such as planet, containing one or multiple society, societies of being, beings, specially intelligent ones.
the world of Narnia; the Wizarding World of Harry Potter; a zombie world
8. s. An individual or group perspective or social setting.
In the world of boxing, good diet is all-important.
Welcome to my world.
9. s. (computing) The part of an operating system distributed with the kernel, consisting of the shell and other programs.
10. s. (tarot) The twenty-second trump or major arcana card of the tarot.
11. s. (informal) A great amount.
Taking a break from work seems to have done her a world of good.
You're going to be in a world of trouble when your family finds out.
a world of difference; a world of embarrassment
12. s. (archaic) Age, era
13. v. To consider or cause to be considered from a global perspective; to consider as a global whole, rather than making or focussing on national or other distinctions; compare globalise.