noun, takes する, intransitive verb

  1. flash, brandish.

Variations

Pronunciation Kanji Kana Is Common
一閃 いっせん

Contained Kanji Breakdown

one, one radical (no.1)
イチ いっ ひと- (1st, N5)
flash, brandish
セン ひらめ.く うかが.う (Kentei Pre-1)
gate, counter for cannons
モン かど と (2nd, N2)
person
ひと ニン ジン (1st, N5)