Synonym Comparison
The Nuance Difference: "言います" vs "役に立つ"
Master the exact conceptual boundary between these Japanese terms.
Japanese Term A
言います
いいます (iimasu)
N5 / CEFR Syllabus
VS
Japanese Term B
役に立つ
やくにたつ (yaku ni tatsu)
N4 / CEFR Syllabus
Nuance Contrast & Social Differences
In Japanese, both 言います and 役に立つ are often translated to English but have distinct usages.
言います (いいます (iimasu)) represents "to say, to tell" (Level: N5) and typically represents Polite form of 言う.
On the other hand, 役に立つ (やくにたつ (yaku ni tatsu)) translates to "to be useful, to be helpful" (Level: N4) and is used for 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. Mixing these up can sound unnatural to native Japanese speakers!
Bilingual Sentence for "言います"
先生にありがとうと言います。
I say thank you to the teacher.
Bilingual Sentence 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.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "先生にありがとうと ＿＿＿ 。" (Meaning: "I say thank you to the teacher.")
🎉 Correct Answer!
Remember: "言います" fits here because it represents "to say, to tell" in the context: "I say thank you to the teacher.".