What it means
おきに means that an action is repeated after a fixed interval. It is attached to a time or quantity expression and commonly corresponds to “every other” or “at intervals of.” For example, 一日おきに means “every other day,” while 三日おきに means “at three-day intervals.” The expression describes a repeating schedule, not a single event.
Usage note
おきに is easily confused with ごとに, which usually means “every” unit without emphasizing the gap between repetitions. With expressions such as 一日おきに, the meaning is normally “every other day,” so the interval wording should be translated carefully.
How to use it
三日おきに図書館へ行きます。
I go to the library every three days.
三日おきに図書館へ行く。
I go to the library every three days.
Example sentences
図書館では二週間おきに新しい雑誌が入ります。
At the library, new magazines arrive every two weeks.
私は二日おきに植物へ水をやります。
I water the plants every other day.
健康のために、三日おきに三十分歩きます。
For my health, I walk for thirty minutes at three-day intervals.
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