WebApr 16, 2024 · Noun [ edit] 里 り • ( ri ) a unit of distance : under the 律令 (Ritsuryō) system, defined as equal to 300 歩 (bu) or 1500 尺 (shaku) from the early modern until the end of the Edo period, defined as equal to 36 町 (chō), approximately between 3.6 to 4.2 kilometers. from the mid- Meiji period, defined as equal to 129,600. ⁄.