What does lineal title mean in boxing?

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Tags

1. #intended
2. #defeating
3. #title
4. #sanctioning
5. #boxer
6. #notional
7. #champion
8. #boxing
9. #commonly
10. #championship
11. #clarify
12. #lineal
13. #hodgepodge
14. #alphabet
15. #previous
16. #bodies
17. #described
18. #modern
19. #professional
20. #titles