Bip39 recovery tool https://sergiouwfc622.fotosdefrases.com/exactly-how-to-generate-a-bip39-seed-a-step-by-step-guide The last step of BIP-39 is producing the actual binary seed which happens to be then used as a master important in BIP-32 deterministic wallet or utilizing other procedures. For words that only have 3 letters, there is absolutely no 4th letter. For example With all https://mysocialport.com/story6114857/bip39-meaning-helping-the-others-realize-the-advantages-of-bip39-recovery-tool-https-cutt-ly-uryc5rw7