Thus, BIP39 proposes to implement an algorithm to convert a seed into a mnemonic phrase string. It extends the algorithm for making wallet seeds. A seed phrase, also known as a recovery phrase or mnemonic phrase, is designed through an automatic and very secure process based on the BIP39 standard. https://bookmarkzap.com/story18750522/how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39-definition