Synonym Nuance VS
How to say "Be" in Japanese
Both words can translate to "be", but which should you choose?
Japanese Option A
役立つ
やくだつ (yakudatsu)
N3 / CEFR Syllabus
VS
Japanese Option B
退屈する
たいくつする (taikutsu suru)
N3 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "be" into Japanese, you must choose carefully between 役立つ and 退屈する.
In Japanese, 役立つ (やくだつ (yakudatsu)) is typically associated with "to be useful, to be helpful" (Syllabus Level: N3) and represents An intransitive verb. Used to describe something that serves a purpose or provides assistance. Often followed by に..
On the other hand, 退屈する (たいくつする (taikutsu suru)) maps to "to be bored" (Syllabus Level: N3) and represents 動詞。興味がなく、時間を持て余す様子を表す。e.g., 授業に退屈する. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "役立つ"
このアプリは毎日の仕事にとても役立ちます。
This app is very useful for daily work.
Bilingual Context for "退屈する"
することもなく、テレビを見ていたら退屈してきた。
Having nothing to do, I watched TV and got bored.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "このアプリは毎日の仕事にとても役立ちます。" (Meaning: "This app is very useful for daily work.")
🎉 Correct Answer!
Remember: "役立つ" fits here because it means "to be useful, to be helpful" in the context of: "This app is very useful for daily work.". "退屈する" represents "to be bored".