Bip39 Words. The passphrase just isn't chosen within the predefined list of 2048 words – it may be any word or phrase you end up picking. It is also discouraged to make words straight from thought and utilize a protected cryptographic function to do so. — Seed phrases are standardized, https://thesocialroi.com/story9423095/bip39-word-list-pdf-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf