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seed phrase

What does seed phrase mean?

A human-readable list of words that encodes a wallet's private key; anyone with it controls the funds, so it must never be shared.

"Never type your seed phrase into a website, ever."

Origin

BIP-39 mnemonic standard; the everyday term for wallet backup.

Frequently asked questions

What is a seed phrase?
It's a list of 12 to 24 words that encodes your wallet's private key; whoever has it controls the funds, so it must never be shared.
What happens if I lose my seed phrase?
If you lose it and lose access to the wallet, the funds are typically unrecoverable, since the seed phrase is the master backup.
Should I ever enter my seed phrase on a website?
No — legitimate services never ask for it, and typing it into a site is a classic scam that hands attackers full control of your wallet.
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Slang definitions: FreeDict original editorial.