Bip39-Standalone. As palavras desta frase são selecionadas de uma lista definida de 2048 palavras, que pode ser acessada aqui ou listada abaixo: For words that only have three letters, there is not any 4th letter. For instance With all the word “add”, there won't be any extra letters Later on https://123-directory.com/listings13116427/bip39-seed-phrase-https-linktr-ee-bip39-top-bip39-seed-phrase-secrets