Bip39 Seed Phrase. The passphrase is not really picked in the predefined list of 2048 words – it can be any word or phrase you select. BIP39 specifies a list of 2048 words from which the mnemonic phrase is preferred. Each word represents a number inside a binary sequence, as https://directmysocial.com/story3474108/bip39-mnemonic-https-linktr-ee-bip39-bip39-generator-an-overview