split second

UK/ˌsplɪtˈsɛk(ə)nd/US/ˌsplɪtˈsɛkənd/

nounB2Not compared — the two pools are counted one word at a time, so a phrase has no score

A split second is an extremely short moment. In a split second, a split second decision.

It is not a real unit and simply means faster than anybody could think. A split second decision is one made before the reasoning could catch up.

Definitions of split second

1nounsplit secondAn extremely short moment.B2
“The whole thing was over in a split second.”

split second is a moment.

split-second comes from split + second, from split second(s) hands: see stopwatch.

Etymology from Wiktionary, CC BY-SA

UK/ˌsplɪtˈsɛk(ə)nd/US/ˌsplɪtˈsɛkənd/

nounB2Not compared — the two pools are counted one word at a time, so a phrase has no score

A split second is an extremely short moment. In a split second, a split second decision.

It is not a real unit and simply means faster than anybody could think. A split second decision is one made before the reasoning could catch up.

1nounsplit secondAn extremely short moment.B2
“The whole thing was over in a split second.”

split second is a moment.

split-second comes from split + second, from split second(s) hands: see stopwatch.

Etymology from Wiktionary, CC BY-SA