expression, noun, noun which may take the genitive case particle 'no'
moment; brief time; fleeting instant
Describes a very short period of time, often with a poetic or emotional nuance of transience. Commonly used as a noun or with の to modify another noun.
つかの間の休息を楽しんだ。
I enjoyed a brief moment of rest.
その幸せは束の間だった。
That happiness was fleeting.