Synonym Comparison
The Nuance Difference: "寝る" vs "安心する"
Master the exact conceptual boundary between these Japanese terms.
Japanese Term A
寝る
ねる (neru)
N5 / CEFR Syllabus
VS
Japanese Term B
安心する
あんしんする (anshin suru)
N4 / CEFR Syllabus
Nuance Contrast & Social Differences
In Japanese, both 寝る and 安心する are often translated to English but have distinct usages.
寝る (ねる (neru)) represents "to sleep, to go to bed" (Level: N5) and typically represents A fundamental daily activity verb. Polite form is 寝ます.
On the other hand, 安心する (あんしんする (anshin suru)) translates to "to be relieved, to feel at ease" (Level: N4) and is used for する verb. Used to express a feeling of relief or peace of mind after a period of worry or anxiety. Opposite of 心配する. Mixing these up can sound unnatural to native Japanese speakers!
Bilingual Sentence for "寝る"
昨日は早く寝ました。
I went to bed early yesterday.
Bilingual Sentence for "安心する"
子供が無事だと聞いて安心しました。
I was relieved to hear that my child was safe.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "昨日は早く寝ました。" (Meaning: "I went to bed early yesterday.")
🎉 Correct Answer!
Remember: "寝る" fits here because it represents "to sleep, to go to bed" in the context: "I went to bed early yesterday.".