light

1. Origins, structure, and basic meaning

• Structure: 光 means light; the noun 光 is read ひかり, and the verb 光る is read ひかる.
• Basic usage: 朝の光 means morning light, while 観光(かんこう) is the word for sightseeing.

2. Common pitfalls and similar expressions

• Verb inflection
  • The connecting form of 光る is 光って, and its past form is 光った. 朝日に光っていた describes something shining in the morning sunlight.