Senses
世界 world
the whole earth or all countries; nature and human society as a whole
世界 field
a specific area of human activity, a range of interest, or a domain; a self-contained system such as the "inner world" or the "underwater world"
世界 cosmos
(Buddhist) the universe, representing infinite time and space
世界 everywhere
(colloquial) all over the place; everywhere
世界 state of affairs
the current state of the world or society; the times; social environment