How many editions of Webster's Dictionary are there?

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Tags

1. #merriam
2. #edition
3. #series
4. #collegiate
5. #webster
6. #abridgments
7. #eleventh
8. #publication
9. #their
10. #unabridged
11. #editions
12. #dictionary
13. #issued
14. #introduced
15. #following
16. #international