brief moment; blink of an eye
Refers to a very short time span, often used in literary or descriptive contexts. Similar to 瞬く間に (in the blink of an eye).
花火は瞬く間に消えてしまった。
The fireworks disappeared in the blink of an eye.
彼は瞬く間に問題を解決した。
He solved the problem in a brief moment.
瞬く間 is an idiomatic phrase meaning 'in the blink of an eye,' with a more vivid, narrative feel than the formal noun 瞬時.
Standard kanji spelling for this expression.
Kana-mixed spelling, often used when the kanji 瞬 is considered difficult or for emphasis.
Compound of 瞬く (matataku, 'to blink') and 間 (ma, 'interval'), literally 'the interval of a blink'.