Bip39 Word List. The passphrase is not really picked from your predefined list of 2048 words – it may be any word or phrase you end up picking. At its Main, a BIP39 passphrase modifies the cryptographic technique of wallet generation. Here’s a technological look at how it really works: https://bookmarkmargin.com/story18987734/bip39-list-https-linktr-ee-bip39-not-known-factual-statements-about-bip39-list