1.
to write in, to fill in
To write information into a form, document, or blank space.
ここに名前を書き込んでください。
Please write your name here.
申込書に住所を書き込んだ。
I filled in my address on the application form.
教科書にメモを書き込んだ。
I wrote notes in the textbook.
地図に目的地までのルートを書き込んだ。
I drew the route to the destination on the map.
手帳に予定を細かく書き込んでいるので、忘れることがない。
I write my schedule in detail in my planner, so I never forget anything.
2.
to post, to comment (online)
To write a comment or message on a website, bulletin board, or social media.
SNSに毎日書き込んでいる。
I post on social media every day.
掲示板に書き込んだ。
I posted on the bulletin board.
匿名で書き込む人が多い。
Many people post anonymously.
悪口を書き込むのはやめてほしい。
I wish people would stop posting insults online.
レストランの口コミサイトに感想を書き込んだら、店から返事が来た。
When I posted a review on the restaurant review site, the shop replied.
書き込む is a transitive verb (他動詞) meaning to write into something or post online.
COMPOUND STRUCTURE:
- 書く (to write) + 込む (into) → to write into
ASPECT (ている):
書き込んでいる indicates an ongoing action of writing/posting.
COMMON PATTERNS:
- 書類に書き込む (fill in a document)
- フォームに書き込む (fill in a form)
- 掲示板に書き込む (post on a bulletin board)
- SNSに書き込む (post on social media)
RELATED NOUN:
- 書き込み: a post, comment, entry (especially online)
MODERN USAGE:
In the internet age, 書き込む is commonly used for posting comments or messages online. 書き込み refers to such online posts or comments.
[Register: Neutral]