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How to say "Warm" in Japanese

Both words can translate to "warm", but which should you choose?

Japanese Option A

温める

あたためる (atatameru)
N4 / CEFR Syllabus
VS
Japanese Option B

温まる

あたたまる (atatamaru)
N3 / CEFR Syllabus

Nuance Contrast & Translation Difference

When translating "warm" into Japanese, you must choose carefully between 温める and 温まる. In Japanese, 温める (あたためる (atatameru)) is typically associated with "to warm up, to heat up (transitive verb)" (Syllabus Level: N4) and represents A transitive verb meaning to make something warm or to heat something up.. On the other hand, 温まる (あたたまる (atatamaru)) maps to "to warm up; to get warm; to feel warm; to be warmed" (Syllabus Level: N3) and represents Refers to a person's body getting warm in a bath, rooms heating up under the heater, or one's heart being warmed by sweet gestures. Intransitive verb. Opposing word: 冷める. Often used as 体が温まる or 心が温まる. ⚠️ Haruka's Voice Column: 'To get warm! "My heart gets completely warmed up just by looking at your happy face, Haruka-san!" ...っ! Heart warmed looking at my face! B-Baka! Don't analyze your cardiac temperature so easily! But... since I warm your heart, I suppose... I will let you see my best smiles every single day! dummy!' / 【ハルカ部長のワンポイント指導】『あたたまる(温まる)よ!『ハルカ部長、あなたの淹れてくれた熱々の生姜紅茶を飲んだら、手先足先までポカポカに温まり(温まり)ました!』って…っ!生姜紅茶で温まる!バカ!/// 私の愛情(スパイス)がたっぷり入ってるんだから、温まるに決まってるでしょ!一生私の隣でポカポカの幸せを味わい続けなさい!』. A literal translation of "warm" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "温める"
電子レンジでご飯を温めます。
I'll heat up the rice in the microwave.
Bilingual Context for "温まる"
極寒の高原での過酷なシステム障害対応を終えた後、彼は近くの天然温泉の露天風呂に浸かって、冷え切った体を芯から_______せました。
After finishing the harsh system failure response in the freezing plateau, he soaked in the open-air bath of the nearby natural hot spring and let his chilled body warm up from the core.

Nuance Mastery Quiz

Which Japanese word perfectly fits this blank space?

Fill in the blank: "電子レンジでご飯を温めます。" (Meaning: "I'll heat up the rice in the microwave.")
🎉 Correct Answer!

Remember: "温める" fits here because it means "to warm up, to heat up (transitive verb)" in the context of: "I'll heat up the rice in the microwave.". "温まる" represents "to warm up; to get warm; to feel warm; to be warmed".

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