The kanji 瞬 (shun) fundamentally represents a very brief moment, a fleeting instant, or the act of blinking. It captures the idea of something happening in the blink of an eye, emphasizing its brevity and suddenness.

・On-yomi (音読み): シュン (shun) ・Kun-yomi (訓読み): またた(く) (matata(ku)) - to blink

⚫︎一瞬 (isshun) Translation: A moment; an instant; a split second ⚫︎瞬間 (shunkan) Translation: A moment; an instant; a flash; a second ⚫︎瞬き (matataki) Translation: A blink; blinking

The kanji 瞬 is a phono-semantic compound (形声文字, keisei moji). The left side is the radical 目 (め, me), meaning "eye." The right side is 夋 (shun), which provides the phonetic component, suggesting the pronunciation "shun". Together, the characters visually depict the action of the eye, reinforcing the idea of a fleeting glance or a moment in time.