Bip39-Standalone. The passphrase will not be picked within the predefined list of 2048 words – it may be any word or phrase you decide on. BIP39 specifies a list of 2048 words from which the mnemonic phrase is selected. Each individual word represents a selection within a binary sequence, as https://allbookmarking.com/story19676147/bip39-passphrase-https-linktr-ee-bip39-bip39-words-secrets