suru verb (special), transitive verb
annotate; comment on; add explanatory notes
Used for adding notes, comments, or explanations to a text, document, or passage.
先生は生徒の作文に注する。
The teacher annotates the students' compositions.
この本には専門家が注し
An expert has added explanatory notes to this book.
suru verb (special), transitive verb
Rare, somewhat literary use for writing something down or noting it. Modern Japanese more often uses 書き留める or メモする.
彼は思いついたことを手帳に注した。
He wrote down his ideas in a notebook.