noun, noun or participle which takes 'suru', transitive verb, intransitive verb
flash of light; glint
Describes a brief, sharp flash or gleam, often of a blade or light. Can be used literally or figuratively for a sudden insight.
刀が一閃して、敵を切り裂いた。
The sword flashed and cut through the enemy.
彼の頭にアイデアが一閃
An idea flashed through his mind.
noun, noun or participle which takes 'suru', transitive verb, intransitive verb
swift strike; quick decisive move
Used in sports and martial arts for a single, fast, decisive action. Often implies a sudden, effective blow or maneuver.
彼の一閃の突きが相手を倒した。
His swift thrust knocked down the opponent.
試合は一閃の動きで決まった。
The match was decided by a single quick move.