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
ある
ある (aru)
N4 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "be" into Japanese, you must choose carefully between 役に立つ and ある.
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, ある (ある (aru)) maps to "to be, to exist (inanimate objects)" (Syllabus Level: N4) and represents 動かないもの（物、植物など）の存在を表します。人間や動物には「いる」を使います。
Expresses the existence of inanimate objects. 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 "ある"
机の上に本があります。
There is a book on the desk.
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.". "ある" represents "to be, to exist (inanimate objects)".