| Word | Reading | Meaning |
|---|
| 閃かす | ひらめかす | to brandish, to flash, to display |
| 閃き | ひらめき | flair, flash; insight; waving (e.g. of a flag in the wind) |
| 閃く | ひらめく | to flash (lightning, etc.), to flicker (lights), to glitter; to wave, to undulate; to hit on a good idea, to occur to someone |
| 一閃 | いっせん | flash, brandish |
| 閃光 | せんこう | flash, glint |
| 閃光電球 | せんこうでんきゅう | flash bulb |
| 花崗閃緑岩 | かこうせんりょくがん | granodiorite |
| 紫電一閃 | しでんいっせん | flash of lightning, flash of a sword, brandishing a sword |
| 電光一閃 | でんこういっせん | flash of lightning |
| 閃緑岩 | せんりょくがん | diorite (a type of rock similar to granite) |
