Electrum Bip39 Passphrase But what is it? A seed phrase is really a mnemonic code consisting of 12-24 words utilised to build or recover your copyright wallet. You could have listened to it called a backup phrase, recovery phrase, or mnemonic sentence. BIP39 specifies a list of 2048 words from https://directoryweburl.com/listings12985546/generator-similar-words-the-best-side-of-bip39-phrase