Mnemonic Phrase

Mnemonic phrase, also known as a seed phrase or recovery phrase. It is list of 12 or 24 words used in sequence to access or restore a person's crypto wallet. It's recommended to store your mnemonic phrase not on a digital device, as those can be easily hacked.[1] The most common storage method seems to be paper wallets (writing it down on a piece of paper) or ideally a hardware wallet.[2][3]

Sources:

https://coinmarketcap.com/alexandria/glossary/mnemonic-phrase