1.
brief moment, fleeting instant
A very short period of time. Emphasizes the transience or brevity of an experience, often with a poignant or wistful nuance.
Usage
Typically used as a noun modifier with the の particle: 束の間の + noun. Carries a literary, slightly melancholy tone — the happiness or peace described is precious precisely because it is so short. Common in written prose and narration.
Common collocations
Etymology
束 originally referred to the width of a clenched fist (about 7-8 cm), used as a unit of measurement. 束の間 literally means "the space of a fist" — metaphorically, an extremely short time.