Bip39 Seed Phrase. First and foremost you should store it SEPARATELY from your seed. Possessing your seed and also your passphrase in exactly the same location defeats the purpose of having a passphrase to start with. BIP39 specifies a list of 2048 words from which the mnemonic phrase is chosen. https://socialislife.com/story4262798/bip39-https-linktr-ee-bip39-the-best-side-of-bip39-mnemonic