Denki represents both the power that runs our devices and the light in our rooms.
Word in 30 Seconds
- Refers to electrical energy for home appliances.
- Used to describe switching lights on or off.
- Essential vocabulary for daily household life.
Overview
- 1概要:電気(でんき)は、現代生活において欠かせないエネルギー源です。物理学的な概念としての「電力」だけでなく、日常生活では「照明」や「電灯」を指す言葉として頻繁に使われます。2) 用法:主にエネルギーを指す場合(電気代、電気を使う)と、明かりを指す場合(電気を消す、電気をつける)の二つの側面があります。3) 一般的な文脈:家の中での日常会話で最もよく使われます。「電気代が高い」「電気を消して寝る」といった表現は非常に基本的です。また、電気製品を指す際にも「電気製品(でんきせいひん)」という形で使われます。4) 類似語との比較:『明かり(あかり)』は光そのものを指す情緒的な言葉ですが、『電気』はシステムやエネルギーとしての側面が強いです。『電灯(でんとう)』は照明器具そのものを指すため、より限定的な意味になります。日常会話では、照明を操作する際には「明かり」よりも「電気」と言うのが一般的です。
Examples
電気を消して寝ます。
everydayI will turn off the light and go to sleep.
電気代が上がりました。
formalThe electricity bill has gone up.
電気つけていい?
informalCan I turn on the light?
電気エネルギーの変換について学ぶ。
academicLearn about the conversion of electrical energy.
Common Collocations
Common Phrases
電気をつける
Turn on the light
電気を消す
Turn off the light
電気代
Electricity bill
Often Confused With
Akari refers specifically to the light or glow itself, often used in more poetic or descriptive contexts. Denki is strictly for the utility and the switchable light.
Dento refers to the light fixture or lamp itself. It is more of a technical term compared to the general-purpose Denki.
Grammar Patterns
How to Use It
Usage Notes
Denki is a neutral term used in both casual and formal settings. It is the most common word for both the utility and the light source. It is highly versatile and essential for daily communication.
Common Mistakes
Beginners sometimes use 'hikari' (light) when they mean the light switch. Remember that 'hikari' is for sunlight or stars, while 'denki' is for man-made electric light.
Tips
Use Denki for all light switches
In Japan, you always say 'denki' when operating home lights. Avoid using more specific terms like 'shomei' in casual conversation.
Don't confuse with lightning
While 'denki' is electricity, a lightning strike is called 'kaminari'. Do not use 'denki' to describe a thunderstorm.
Energy saving culture
Japanese people are very conscious of 'denki-dai' (electricity bills). Turning off lights when leaving a room is a common habit.
Word Origin
The word is derived from Sino-Japanese characters. '電' (den) means lightning or electricity, and '気' (ki) refers to spirit or energy.
Cultural Context
In Japan, electricity is highly reliable, but energy conservation is a significant cultural value. People are often reminded to turn off 'denki' to save costs and resources.
Memory Tip
Think of 'Den-ki' as 'Den' (like a den/room) + 'ki' (energy). It's the energy that fills your room with light.
Frequently Asked Questions
4 questions「電気をつける」は照明のスイッチを入れて明るくすること、「電気を消す」はスイッチを切って暗くすることを意味します。日常的に非常によく使われるフレーズです。
「電気」は生活全般で使われる広い言葉です。「電力」は、発電所から送られるエネルギーの量や、物理的なパワーを指す専門的な文脈で使われます。
電気代は、家庭や会社で使用した電気の料金のことです。毎月支払うコストを指す際によく使われます。
「電灯」は照明器具そのものを指す少し硬い表現です。日常会話では単に「電気」と言う方が自然です。
Test Yourself
寝る前に、部屋の___を消してください。
部屋を明るくするものを消すので、「電気」が正解です。
Score: /1
Summary
Denki represents both the power that runs our devices and the light in our rooms.
- Refers to electrical energy for home appliances.
- Used to describe switching lights on or off.
- Essential vocabulary for daily household life.
Use Denki for all light switches
In Japan, you always say 'denki' when operating home lights. Avoid using more specific terms like 'shomei' in casual conversation.
Don't confuse with lightning
While 'denki' is electricity, a lightning strike is called 'kaminari'. Do not use 'denki' to describe a thunderstorm.
Energy saving culture
Japanese people are very conscious of 'denki-dai' (electricity bills). Turning off lights when leaving a room is a common habit.
Examples
4 of 4電気を消して寝ます。
I will turn off the light and go to sleep.
電気代が上がりました。
The electricity bill has gone up.
電気つけていい?
Can I turn on the light?
電気エネルギーの変換について学ぶ。
Learn about the conversion of electrical energy.
Related Content
This Word in Other Languages
Related Vocabulary
More home words
上に
B1Above; on top of.
不在
B1Absent; not present. Not in a particular place.
手頃な
B1Affordable, reasonable (price).
お先に
B1Excuse me for going first; said when leaving before others.
仲介
B1Mediation, agency (e.g., real estate).
あっ
B1Ah!; an exclamation of sudden realization or surprise.
エアコン
A2air conditioner
冷暖房
B1Air conditioning and heating system.
風通しの良い
B1Well-ventilated; airy.
~可
A2Suffix meaning "permitted" or "allowed".