When you're around a B1 CEFR level in Japanese, you're starting to understand more nuanced vocabulary. 太陽光 (たいようこう - taiyoukou) is a solid word to add to your toolkit. It literally combines 太陽 (たいよう - taiyou), meaning 'sun,' and 光 (こう - kou), meaning 'light.'
You'll often encounter this term in more formal or technical contexts when discussing sunlight, like in news about solar energy or scientific articles. While 日光 (にっこう - nikkou) is a more common, everyday word for 'sunlight,' 太陽光 is good to know for those specific situations. It's practical to distinguish between them as you advance.
When talking about sunlight in Japanese, you'll often hear 太陽光 (taiyōkō). This noun specifically refers to the light that comes directly from the sun.
For example, if you're discussing solar power, you'd use 太陽光発電 (taiyōkō hatsuden), which literally means "sunlight power generation." It's a technical term that distinguishes it from general light or warmth.
You might also encounter it in discussions about UV rays, like 太陽光線を浴びる (taiyōkōsen o abiru), meaning "to be exposed to sunlight/UV rays." So, while it means 'sunlight,' it often carries a more scientific or technical nuance than a general, poetic description of the sun's rays.
How Formal Is It?
"植物は日光を吸収して成長します。(Plants absorb sunlight to grow.)"
"今日の午後は日差しが強いです。(The sunlight is strong this afternoon.)"
"おひさまが出ていると気持ちいいね。(It feels good when the sun is out.)"
"おてんとさま、こんにちは！(Hello, sun!)"
Niveau de difficulté
Two common kanji compounds, relatively straightforward to read if familiar with basic kanji.
Requires knowledge of 太陽 (sun) and 光 (light) kanji.
Pronunciation is clear: ta-i-yō-kō.
Distinct pronunciation makes it easy to differentiate.
Quoi apprendre ensuite
Prérequis
Apprends ensuite
Avancé
Exemples par niveau
太陽光発電は環境に優しいエネルギー源です。
Solar power generation is an environmentally friendly energy source.
発電 (hatsuden): power generation. 環境に優しい (kankyou ni yasashii): environmentally friendly.
窓から差し込む太陽光で部屋が明るくなりました。
The room became bright with the sunlight streaming in through the window.
差し込む (sashikomu): to stream in, to shine in. 明るくなる (akaruku naru): to become bright.
太陽光を浴びることで、体内でビタミンDが生成されます。
By being exposed to sunlight, vitamin D is produced in the body.
浴びる (abiru): to be exposed to. 体内 (tainai): inside the body. 生成される (seisei sareru): to be produced.
この植物は太陽光が大好きなので、日当たりの良い場所に置いてください。
This plant loves sunlight, so please put it in a sunny spot.
大好き (daisuki): love very much. 日当たり (hiatari): exposure to the sun, sunshine.
太陽光の熱を利用して水を温めることができます。
You can heat water using the heat from sunlight.
利用する (riyou suru): to use, to utilize. 温める (atatameru): to warm up, to heat up.
宇宙探査機は太陽光エネルギーで動いています。
Space probes are powered by solar energy.
宇宙探査機 (uchuu tansaki): space probe. 動く (ugoku): to move, to operate.
太陽光線は皮膚に有害な影響を与える可能性があります。
Sunlight can have harmful effects on the skin.
太陽光線 (taiyou kousen): sunbeam. 皮膚 (hifu): skin. 有害な影響 (yuugai na eikyou): harmful effects.
最新の建築技術では、太陽光を最大限に活用しています。
The latest architectural technology makes maximum use of sunlight.
最新 (saishin): latest. 建築技術 (kenchiku gijutsu): architectural technology. 最大限に (saigen ni): to the maximum extent.
太陽光発電は、再生可能エネルギー源として世界中で注目されています。
Solar power generation is attracting attention worldwide as a renewable energy source.
〜として (as, in the capacity of)
朝の太陽光を浴びると、心身がリフレッシュされる気がします。
Basking in the morning sunlight refreshes the mind and body.
〜を浴びる (to bask in, to be exposed to)
この植物は太陽光が不足すると枯れてしまうので、日当たりの良い場所に置いてください。
This plant will wither if it doesn't get enough sunlight, so please place it in a sunny spot.
〜が不足する (to be lacking, to be insufficient)
窓から差し込む太陽光で、部屋全体が明るく暖かくなった。
The entire room became bright and warm with the sunlight streaming in through the window.
〜が差し込む (to stream in, to shine through)
近年、太陽光を利用した様々な製品が開発されています。
In recent years, various products utilizing solar light have been developed.
〜を利用した (utilizing, using)
太陽光に含まれる紫外線は、肌に悪影響を及ぼす可能性があります。
Ultraviolet rays contained in sunlight can have a harmful effect on the skin.
〜に含まれる (to be contained in, to be included in)
都会では、高層ビルによって太陽光が遮られることが多い。
In cities, sunlight is often blocked by tall buildings.
〜によって (by means of, due to)
太陽光のエネルギーを効率的に利用する技術が求められています。
Technology for efficiently utilizing solar energy is in demand.
〜が求められる (to be required, to be sought after)
Astuces
Basic Meaning of 太陽光
太陽光 (たいようこう - taiyoukou) literally means 'sunlight' or 'solar light.' It's a straightforward term. You'll often hear it in discussions about solar energy or natural light. Think of it as the light from the sun.
Reading Breakdown
Let's break down the Kanji: 太陽 (たいよう - taiyou) means 'sun' and 光 (こう - kou) means 'light.' So, it's very logical. Knowing the individual Kanji helps with other related words too, like 日光 (にっこう - nikkou) which also means sunlight.
Common Usage: Solar Energy
A very common context for 太陽光 is in relation to 太陽光発電 (たいようこうはつでん - taiyoukou hatsuden), which means solar power generation or photovoltaic power generation. If you're talking about green energy, this word is essential.
Using it in Sentences
You can use 太陽光 in phrases like 太陽光を浴びる (たいようこうをあびる - taiyoukou o abiru) meaning 'to bathe in sunlight' or 'to get sunlight.' This is similar to saying 'get some sun.'
Don't Confuse with 日光 (Nikkou)
While 日光 (にっこう - nikkou) also means sunlight, 太陽光 (たいようこう - taiyoukou) often carries a slightly more scientific or technical nuance, especially in contexts like energy. 日光 is more general, like 'the sun's rays' or 'daylight.' Think of 太陽光 for a more specific kind of light.
Adjective Forms
While 太陽光 is a noun, you'll often see it modifying other nouns. For example, 太陽光パネル (たいようこうパネル - taiyoukou paneru) means 'solar panels.' It acts almost like an adjective here.
Example: Sunny Room
この部屋は太陽光がたくさん入るので、とても明るいです。
(Kono heya wa taiyoukou ga takusan hairu node, totemo akarui desu.)
This room is very bright because a lot of sunlight comes in.
Example: Solar Power
政府は太陽光発電の普及を促進しています。
(Seifu wa taiyoukou hatsuden no fukyuu o sokushin shiteimasu.)
The government is promoting the spread of solar power generation.
Importance of Sunlight in Japan
In Japan, getting enough 太陽光 is often encouraged for health, especially for children. Phrases like '日光浴' (にっこうよく - nikkouyoku, sunbathing) are common, emphasizing the positive effects of sunlight.
Scientific Context
In scientific or technical discussions, 太陽光 is the preferred term when referring to the electromagnetic radiation emitted by the sun. For instance, when discussing its spectrum or energy conversion, 太陽光 is the precise term to use.
Teste-toi 6 questions
Choose the correct kanji for 'taiyoukou' (sunlight).
太陽 (taiyou) means sun, and 光 (kou) means light. So, 太陽光 (taiyoukou) is the correct kanji for sunlight.
Which of these is a synonym for 太陽光 (taiyoukou)?
日光 (nikkou) also means sunlight or daylight, making it a good synonym for 太陽光 (taiyoukou).
Which sentence correctly uses 太陽光 (taiyoukou)?
You 'bask in' or 'receive' sunlight (浴びる - abiru), not eat, drive, or sing it.
太陽光 (taiyoukou) is often used to refer to artificial light.
太陽光 (taiyoukou) specifically refers to natural sunlight from the sun, not artificial light.
植物は太陽光を使って成長します。(Shokubutsu wa taiyoukou o tsukatte seichou shimasu.) - Plants grow using sunlight.
This statement is true. Plants use sunlight for photosynthesis to grow.
太陽光発電 (taiyoukou hatsuden) means 'solar power generation'.
太陽光発電 (taiyoukou hatsuden) literally translates to 'sunlight power generation', which is 'solar power generation'.
/ 6 correct
Perfect score!
Basic Meaning of 太陽光
太陽光 (たいようこう - taiyoukou) literally means 'sunlight' or 'solar light.' It's a straightforward term. You'll often hear it in discussions about solar energy or natural light. Think of it as the light from the sun.
Reading Breakdown
Let's break down the Kanji: 太陽 (たいよう - taiyou) means 'sun' and 光 (こう - kou) means 'light.' So, it's very logical. Knowing the individual Kanji helps with other related words too, like 日光 (にっこう - nikkou) which also means sunlight.
Common Usage: Solar Energy
A very common context for 太陽光 is in relation to 太陽光発電 (たいようこうはつでん - taiyoukou hatsuden), which means solar power generation or photovoltaic power generation. If you're talking about green energy, this word is essential.
Using it in Sentences
You can use 太陽光 in phrases like 太陽光を浴びる (たいようこうをあびる - taiyoukou o abiru) meaning 'to bathe in sunlight' or 'to get sunlight.' This is similar to saying 'get some sun.'
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