What's the difference between economy and world Traveller ba?

Related questions

1. Do you get tier points If you part pay with Avios?
2. What is the difference between British Airways economy and premium economy?
3. How do I transfer my BA Avios to another person?
4. Can you add previous flights BA Executive Club?
5. How many BA tier points do I get?
6. Can a BA silver card holder take a guest into the lounge?
7. Does China Airlines have premium economy?
8. Do Ba reward flights earn tier points?
9. What's the difference between avios and BA Executive Club?
10. Is BA Executive Club the same as Avios?

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23. #world
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25. #inclusive