Bip39 Dictionary. At the start you must store it SEPARATELY out of your seed. Obtaining your seed and your passphrase in the exact same locale defeats the purpose of aquiring a passphrase to start with. BIP39 specifies a list of 2048 words from which the mnemonic phrase is decided on. https://freebookmarkpost.com/story18649513/bip39-mnemonic-https-linktr-ee-bip39-not-known-details-about-bip39-list