1. Take 0 out then you are really in it
2. Take 1 out then it is unreal
3. Take 2 out, then you are back to 1
4. Take 3 out, then you are now in US
5. Take 4 out, then you are back to 0
What word am I?
The numbering of the clues is part of the puzzle.
Numbers are part of the word
Starts with a vowel and ends with a vowel
Five letter word with 3 vowels