一ひとつ置おき

ひ

と

つ

お

き

JLPTN2

Meanings

noun

every other one; alternate

Used as a noun or adverbially to describe spacing or selection where one item is skipped between each chosen item. Often follows a counter or noun indicating the interval.

この通とおりには、一ひとつ置おきに街がい灯とうが立たっている。
On this street, there is a streetlight at every other interval.
彼かれは一ひとつ置おきの席せきに座すわった。
He sat in every other seat.

Usage patterns

〈物もの〉を一ひとつ置おきに並ならべるto arrange things with one skipped between each
椅い子すを一ひとつ置おきに並ならべてください。
Please arrange the chairs with one space between each.
〈人ひと〉が一ひとつ置おきに座すわるto sit leaving one seat empty between people
感かん染せん対たい策さくのため、一ひとつ置おきに座すわってください。
Please sit with one seat empty between each person as a precaution against infection.
〈数すう〉行ぎょうおきに一ひとつ置おきに〈動どう詞し〉to do something every other line/row/etc.
一いち行ぎょうおきに一ひとつ置おきに印しるしをつけた。
I marked every other line with a check.