Mnemonic / Seed phrase
A list of ordinary words (typically 12 or 24) that encodes the master secret behind a wallet, from which all its keys can be regenerated. It is a human-friendly backup of one's private keys; anyone who learns the phrase controls the funds, and anyone who loses it may lose access forever.
In the bookExplained in Chapter 18: Wallets, Keys, and Self-Custody: The Mechanics of "Owning"
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