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half; semi-; partial
half-past
odd number
三さん時じ半はんに会おうあおうかな。
Maybe we should meet at three thirty.
ケーキを半はんぶん分にして食べたべた。
I cut the cake in half and ate it.
半はんとし年もかけてやっと完成かんせいさせました。
It took half a year to finally complete it.