A list of words that backs up a wallet; it can recreate all keys and addresses.
A seed phrase encodes the entropy used to derive a hierarchical set of keys (BIP39/BIP32). Anyone with your seed controls your funds. Store it offline and never share.
"After reinstalling her wallet app, Maria restores access by entering her 12-word seed phrase, which regenerates her keys and balances."
All terms and definitions may update as the Cryptionary improves.