1. law (esp. ancient East Asian criminal code); regulation
2. vinaya (rules for the monastic community)
3. Ritsu (school of Buddhism)
4. lüshi (style of Chinese poem)
5. (musical) pitch
also りち
6. six odd-numbered notes of the ancient chromatic scale
7. Japanese seven-tone gagaku scale, similar to Dorian mode (corresponding to: re, mi, fa, so, la, ti, do)
8. (in traditional Eastern music) step (corresponding to a Western semitone)