moment; very short time
A somewhat literary or formal word for a brief instant. In everyday speech, ちょっとの間 or 一瞬 are more common.
It was a situation where I couldn't take my eyes off it even for a moment.
Not even a moment's delay is allowed.
Composed of 寸 (a very small unit of length, metaphorically 'a little') and 時 (time). The exact historical derivation is uncertain, but the combination suggests a tiny amount of time.