Bip39 Passphrase Generator. Regulations 11 and 12 prevent the choice words that aren't unique enough. This makes Each individual word extra recognizable between Some others and less error vulnerable. One example is: the wordlist is made up of "atono", then "atomo" is rejected, but "atomico" is good. The BIP39 standard https://israelwkvhs.ouyawiki.com/1114780/the_anatomy_of_the_bip39_phrase_entropy_text_and_protection