World or universe (6)
I believe the answer is:
cosmos
I believe this clue is a double definition.
'world' is the first definition.
(I know that world can be written as cosmos)
'universe' is the second definition.
(I know that universe can be written as cosmos)
(Other definitions for cosmos that I've seen before include "Everything that exists" , "The universe, whole of creation" , "Universe as an ordered system" , "The universe - a daisy" , "Universe seen as a whole" .)