Last Updated：2025/11/25

(informal) In one's opinion. / Used other than figuratively or idiomatically: see in, one's, book.

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See correct answer

in one's book

Source Word

in one's book

Prepositional phrase

informal

(informal) In one's opinion. / Used other than figuratively or idiomatically: see in, one's, book.

Japanese Meaning

私見では / 個人的意見として

In one's book, punctuality is the mark of true professionalism.

私の考えでは、時間厳守は真のプロフェッショナリズムの証です。

Sense（1）

(informal) In one's opinion.

Is this "the field?" Not in our book, it isn't.

Sense（2）

Used other than figuratively or idiomatically: see in, one's, book.