-----------------------------------
何か, なにか, なんか
1. something, some, any
2. somehow, for some reason
3. (so) what (are you trying to say)?, what (do you mean)?
什么,任何
-----------------------------------
ない, 無い
1. nonexistent, not being (there)
2. unowned, not had, unpossessed
3. unique
4. not, impossible, won't happen
5. not
6. to not be, to have not
tbd
こと, 事, 縡
1. thing, matter
2. incident, occurrence, event, something serious, trouble, crisis
3. circumstances, situation, state of affairs
4. work, business, affair
5. after an inflectable word, creates a noun phrase indicating something the speaker does not ...
tbd