Bip39 12 vs 24 https://685fcc02d9ea2.site123.me Despite the fact that it works by using BIP32 method you could nevertheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Variation which some wallet use with the generation of seeds. For words that have only three letters, there https://zenwriting.net/keenanctdp/how-to-create-a-bip39-seed-a-step-by-step-guide