Bip39 gpu https://unsplash.com/@morganvmyg Regardless that it uses BIP32 strategy you can nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 there is BIP44 Variation which some wallet use for the generation of seeds. For words that have only three letters, there isn't any 4th letter. As an example Together https://webookmarks.com/story6224372/bip39-utils-indicators-on-bip39-standard-you-should-know-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw