adverbial N3 common casualpolitewritten
おきに — at intervals of
おきに
Builds on 助数詞
Meaning
- at intervals of ~ / every (other) ~ — leaves a fixed gap of the stated amount between repetitions
Key sentence
この薬は四時間おきに飲んでください。
Take this medicine at four-hour intervals.
Formation
| Attaches to | Form | Example |
|---|---|---|
| Number + counter + おきに | [number + counter] + おきに | 一日おきに / 三メートルおきに |
Examples
オリンピックは四年おきに開催される。
The Olympics are held every four years.
道には十メートルおきに街灯が立っている。
Streetlights stand at ten-meter intervals along the road.
Easily confused with
Notes
- The tricky case is discrete counted things: 一日おきに = 'every other day' (one day's gap). With continuous spans like 距離 or large times, おきに and ごとに often land on the same reading ('every X').
See おきに in real sentences
Jengo shows おきに the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled with reference to A Dictionary of Basic Japanese Grammar.