necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary

needlessness

necessary evil

(history, government) a 律令 (ritsuryō) department under the 中務省 (Nakatsukasashō, “Ministry of the Center”), responsible for managing books and stationery used by officials

the both of something / a traditional unit of currency

a male given name / a male given name

(law, historical) an administrative and civil code developed during the Qin dynasty that was, alongside the 律 (ritsu), spread throughout East Asia especially Japan where it was further revised into the 律令 (Ritsuryō) system

Alternative form of 涼

both