| Readings | On-reading | けい |
| Kun-reading | ほたる | |
| Meaning | firefly | |
| Radical | 虫 | |
| Stroke count | １１ | |
| JLPT Level | N1 | |
Stroke order of 「蛍」
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Vocabulary contains 「蛍」
| Word | Meaning |
| 蛍（ほたる） | firefly |
| 蛍光灯（けいこうとう） | fluorescent lamp |
