What is meant by legend or index in a map?

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Tags

1. #sample
2. #appearance
3. #enhance
4. #point
5. #visual
6. #creating
7. #symbols
8. #description
9. #legend
10. #symbol
11. #overall
12. #gestalt
13. #typically
14. #short
15. #includes
16. #means
17. #explanation