1Sunlight — the light that shines from the sun.
カーテンを開けると日光が部屋いっぱいに差し込んだ。
When I opened the curtains, sunlight flooded the room.
植物は日光を浴びて育つ。
Plants grow by receiving sunlight.
強い日光を長時間浴びると肌が日焼けする。
If your skin is exposed to strong sunlight for a long time, it gets sunburned.
日光を避けるために帽子をかぶった。
I wore a hat to avoid the sunlight.
2Nikkō — a tourist city in Tochigi Prefecture, known for UNESCO World Heritage sites such as Nikkō Tōshō-gū.
紅葉の季節に日光へ旅行に行った。
I traveled to Nikkō during the autumn leaves season.
日光には有名な滝がいくつもある。
Nikkō has several famous waterfalls.
3In Buddhism, an abbreviated name for the bodhisattva Suryaprabha (日光菩薩), associated with sunlight.
本堂には日光と月光の両菩薩像が並んで安置されている。
In the main hall, statues of both the Suryaprabha and Candraprabha bodhisattvas are enshrined side by side.