What is bip39 passphrase?

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Tags

1. #electrum
2. #wallets
3. #similar
4. #scheme
5. #extension
6. #empty
7. #standard
8. #instead
9. #phrase
10. #protecting
11. #bip39
12. #defines
13. #string
14. #passphrase
15. #other
16. #present