What does 光 mean?
光 is a Japanese noun meaning “light, a ray” in English. It can also be translated as “gleam, hope” depending on context. It is written as 光 in kanji, ひかり in hiragana, and hikari in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
光が世にやって来た。
Light has come into the world.