Bip39 word list https://www.symbaloo.com/mix/bookmarks-xfkm Although it employs BIP32 system you can still import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 Edition which some wallet use for the generation of seeds. For words that have only 3 letters, there is not any 4th letter. For https://ticketsbookmarks.com/story20609544/bip39-wordlist-english-github-5-simple-statements-about-bip39-converter-explained-https-t-me-bip39-chat