BIP39 Words Starting with R (108 words)

The 108 BIP39 words that start with R run from #1410 rabbit to #1517 rural in the English wordlist: indexes 1409 to 1516, or 10110000001 to 10111101100 in binary. That is 5.3% of the 2048 words, the 8th-largest of the 25 letter groups. Word length goes from 3 letters (raw, rib and 2 more) to 8 (remember, resemble and 2 more).

27 three-letter beginnings are shared by two or more words; the largest is "res", with 6 words. The 77 words in these groups need their first four letters to be told apart, while 30 are identified by the first three, and one (rhythm) by the first two. The short words rib and run also begin longer ones, so a four-letter backup keeps them whole.

32 of the 108 words have look-alikes one letter away, such as race and rack. Two words sound identical: right and write (/raɪt/). Read aloud, 107 pairs differ by a single sound, for example race and rail. Three spellings are shared with the French BIP39 list, at different indexes: relief, rival and romance. Seven of the words appear in the official BIP39 test vectors, among them rapid and raw.