Bip39. The passphrase is just not selected with the predefined list of 2048 words – it can be any word or phrase you choose. BIP39 specifies a list of 2048 words from which the mnemonic phrase is decided on. Every word represents a variety in a binary sequence, along with https://social40.com/story5020733/bip39-mnemonic-https-linktr-ee-bip39-an-unbiased-view-of-bip-39