常温（じょうおん、jouon）
- normal temperature

The Japanese word 常温 じょうおん means "room temperature" or "normal temperature." It refers to the typical temperature of an indoor environment, usually considered to be around 20-25 degrees Celsius (68-77 degrees Fahrenheit). The term suggests a temperature that is neither extremely hot nor cold. It's often used in instructions, descriptions, or when specifying storage conditions.

⚫︎ 常温で保存してください。 Translation: Please store at room temperature. ⚫︎ 常温の飲み物はいかがですか？ Translation: Would you like a drink at room temperature? ⚫︎ 薬は常温で保管してください。 Translation: Please store the medicine at room temperature.

You use 常温 when you need to specify the temperature for something. ⚫︎It's common when providing instructions, such as for storing food, medicine, or other items. ⚫︎You can use it to describe the temperature of drinks or other items. ⚫︎You might see it on product labels or in recipes. ⚫︎For example, if you want to tell someone to drink a beverage that is not heated or cooled, you can describe it as 常温.

常温 is typically written in kanji as 常温. The reading is じょうおん. There are no other ways to write 常温 and there are no variations in the okurigana.

There are no perfect synonyms for 常温, as it is a specific temperature range. However, depending on the context, you might use phrases like: ⚫︎ 室温 - しつおん (room temperature) ⚫︎ 温度 - おんど (temperature) if you are discussing a broader range of temperatures.

The antonyms of 常温 depend on the context. If referring to storage conditions, it could be: ⚫︎ 冷蔵 - れいぞう (refrigerated) ⚫︎ 冷凍 - れいとう (frozen) If referring to the temperature of a drink, for example: ⚫︎ 熱い - あつい (hot) ⚫︎ 冷たい - つめたい (cold)

このチョコレートは《常温で溶けやすいです。》 ・Translation: This chocolate melts easily at room temperature. ・Explanation: This sentence describes the condition of the chocolate with 常温.

《常温で保存できる食品は便利です。》 ・Translation: Foods that can be stored at room temperature are convenient. ・Explanation: This sentence explains the usefulness of food that can be stored at 常温.

The word 常温 is made up of two kanji: 常 (じょう), meaning "constant," "usual," or "ordinary," and 温 (おん), meaning "temperature" or "warmth." Combined, the two kanji express the idea of a "normal" or "usual" temperature.