Bip39 Npm. The passphrase just isn't picked with the predefined list of 2048 words – it can be any word or phrase you end up picking. What constitutes a "great wallet" is one which has clear, very easy to access documentation on supported BIP benchmarks, derivation paths, and recovery processes. https://social-galaxy.com/story4207003/bip39-list-https-linktr-ee-bip39-a-review-of-bip39-words