What does 蛍 mean?
蛍 is a Japanese noun meaning “firefly (Luciola cruciata); lightning bug; glowworm” in English. It is written as 蛍 in kanji, ほたる in hiragana, and hotaru in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
蛍光ペン借りていい？
Can I borrow your highlighter?