Synonym Nuance VS
How to say "Be" in Japanese
Both words can translate to "be", but which should you choose?
Japanese Option A
役に立つ
やくにたつ (yaku ni tatsu)
N4 / CEFR Syllabus
VS
Japanese Option B
失望する
しつぼうする (shitsubō suru)
N3 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "be" into Japanese, you must choose carefully between 役に立つ and 失望する.
In Japanese, 役に立つ (やくにたつ (yaku ni tatsu)) is typically associated with "to be useful, to be helpful" (Syllabus Level: N4) and represents A set phrase meaning to be useful or helpful for someone or something. It describes the utility of an object, skill, or person. Often followed by the particle に.
On the other hand, 失望する (しつぼうする (shitsubō suru)) maps to "to be disappointed; to lose hope" (Syllabus Level: N3) and represents 「失望する」は、期待していたことが叶わず、がっかりする気持ちを表します。人や結果に対して使われることが多いです。. A literal translation of "be" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "役に立つ"
この辞書は日本語の勉強に役に立ちます。
This dictionary is useful for studying Japanese.
Bilingual Context for "失望する"
彼の裏切りにとても失望した。
I was very disappointed by his betrayal.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "この辞書は日本語の勉強に役に立ちます。" (Meaning: "This dictionary is useful for studying Japanese.")
🎉 Correct Answer!
Remember: "役に立つ" fits here because it means "to be useful, to be helpful" in the context of: "This dictionary is useful for studying Japanese.". "失望する" represents "to be disappointed; to lose hope".