Synonym Boundary: "暖かい", "温かい", "温める", "温暖", "手厚い"

When expressing "warm" in Japanese, you must carefully distinguish between "暖かい", "温かい", "温める", "温暖", "手厚い" based on context.

• 暖かい (あたたかい (atatakai) - Level: N5): Maps to "warm (weather, air temperature)" and is used when An i-adjective used to describe comfortable, mild warmth in weather or air. Not used for objects..
• 温かい (あたたかい (atatakai) - Level: N4): Maps to "warm (food, drink, human touch)" and is used when Used for the temperature of food, drinks, or the warmth felt from a person's hands/heart. Written with the kanji 温.
• 温める (あたためる (atatameru) - Level: N4): Maps to "to warm up, to heat up (transitive verb)" and is used when A transitive verb meaning to make something warm or to heat something up..
• 温暖 (おんだん (ondan) - Level: N3): Maps to "warm, mild (climate)" and is used when Describes a climate or temperature that is pleasantly warm and moderate, not too hot or too cold. Often used with 気候.
• 手厚い (てあつい (teatsui) - Level: N2): Maps to "warm, courteous, generous, hospitable (often for treatment or care)" and is used when Implies thorough, kind, and often generous treatment or care. Can be used for hospitality, medical care, or compensation..

Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!