Dictionary / Vocabulary / 書き留める
かきとめる · also かきとどめる
to write down; to make a note of; to put on record; to chronicle
Also written 書きとめる、書留める、書き止める
話の要点を書き留めなさい。
Take down the main points of the speech.
忘れないように名前を書き留めておきたい。
Write down the name in case you forget it.
忘れないように彼女の住所を書き留めた。
I wrote down her address so as not to forget it.