BIP39 Words Starting with J (20 words)

The 20 BIP39 words that start with J run from #953 jacket to #972 just in the English wordlist: indexes 952 to 971, or 01110111000 to 01111001011 in binary, so all of them begin with the bits 0111. That is 1.0% of the 2048 words, the 21st-largest of the 25 letter groups. Word length goes from 3 letters (jar, job and joy) to 7 (jealous and journey).

Two three-letter beginnings are shared by two or more words; the largest is "jun", with 3 words: jungle, junior and junk. The 5 words in these groups need their first four letters to be told apart, while 15 are identified by the first three.

Five of the 20 words have look-alikes one letter away, such as job and joy or jar and bar; all pairs are listed below. Read aloud, 6 pairs differ by a single sound, for example jar /ʤɑː/ and joy /ʤɔɪ/. Two spellings are shared with the French BIP39 list, at different indexes: jaguar and junior. Two of the words appear in the official BIP39 test vectors: join and junior.