Bip39 How Many Words Some words are shorter than four letters, like the word “act”. Other words are lengthier than four letters, like “summary”. Please remember to allow for recovery from mnemonic phrases which have invalid checksums (or that you don't have the wordlist) You may set your browser to https://social-lyft.com/story8863745/bitcoin-seed-phrase-generator-how-much-you-need-to-expect-you-ll-pay-for-a-good-bip39