Bip39 Dictionary. Because of the cryptographic style of BIP-39, a weak passphrase isn't going to reduce the safety of the other wallets or help reveal the seed words. BIP39 specifies a list of 2048 words from which the mnemonic phrase is preferred. Just about every word signifies a range in https://onelifesocial.com/story4187545/bip39-passphrase-https-linktr-ee-bip39-about-ian-coleman-bip39