三十分

N5 私は三十分ぐらい勉強しました。 Watashi wa sanjuppun gurai benkyou shimashita. I studied about 30 minutes.

N2 五十音 gojuuon the Japanese syllabary N2 再三 saisan again and again, repeatedly N2 三角 sankaku triangle, triangular N2 水分 suibun moisture N2 成分 seibun ingredient, component, composition N2 等分 toubun division into equal parts N2 引分け hikiwake a draw (in competition), tie game N2 引き分け hikiwake draw (in competition), tie game N2 分解 bunkai analysis, disassembly

N5 三 san, zou / mi, mi.tsu, mitsu.tsu three, trois, tres N5 十 juu, jitsu, jutsu / too, to, so ten, dix, diez N3 分 bun, fun, bu / wa.keru, wa.ke, wa.kareru, wa.karu, wa.katsu part, minute of time, segment