逐ちく一いち

also: ちくいつ

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い

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Common wordJLPTN1Freq.FrequencyTop 50,000

Meanings

Used when going through items, points, or details individually and exhaustively. Often appears with verbs like 説明する, 報告する, 調べる, or 指摘する.

〈事こと〉を逐ちく一いち報ほう告こくするto report something in detail, point by point
彼かれは会かい議ぎの内ない容ようを逐ちく一いち報ほう告こくした。
He reported the details of the meeting one by one.
〈事こと〉を逐ちく一いち説せつ明めいするto explain something in full, step by step
先せん生せいは手て順じゅんを逐ちく一いち説せつ明めいしてくれた。
The teacher explained the procedure step by step.
〈事こと〉を逐ちく一いち確かく認にんするto check something one item at a time
在ざい庫こを逐ちく一いち確かく認にんする必ひつ要ようがある。
We need to check the inventory item by item.

一ひとつ一ひとつ
一つ一つ focuses on handling each item individually, while 逐一 emphasizes covering every detail exhaustively and in order.
詳しょう細さいN2
詳細 is a more formal noun/na-adjective meaning 'detail(ed)', whereas 逐一 is an adverb stressing a step-by-step, itemized account.
いちいちN3
逐一 is a formal, written-style word for 'one by one, in detail' without the irritated tone that 一々 can carry.

ざっとN3
ざっと means to do something roughly or briefly, the opposite of 逐一's sense of covering every point in exhaustive detail.

逐一Usage99%
- ちくいち
  Standard kanji spelling; the reading ちくいち is the modern norm.
- ちくいつ
  Older reading; rarely used in modern Japanese.
ちくいちUsage1%
Kana spelling is common in everyday writing, especially when the kanji is not needed.
ちくいつUsage1%

Compound of 逐 (chase, pursue, one by one) and 一 (one). The reading ちくいち is the standard modern form; ちくいつ is an older variant.