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summer (on the lunisolar calendar: 16th day of the 4th month to the 15th day of the 7th month)
「夏」 has other readings with different meanings.
夏安居の間は修行に励む。
During the summer retreat, we devote ourselves to practice.
お寺では夏の行事が毎年行われます。
Summer events are held every year at the temple.
夏の修行期間が終わると解制の法要があります。
When the summer practice period ends, there is a release ceremony.