What does kill 9 mean?

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Tags

1. #kernel
2. #normal
3. #singal
4. #signal
5. #meaning
6. #process
7. #ignorable
8. #killed
9. #ignored
10. #catchable
11. #cannot
12. #means
13. #sigkill
14. #passes
15. #without
16. #command
17. #which
18. #terminates