narrow margin; slight difference
Used for a very small difference in numbers, votes, scores, etc. Often appears in contexts like elections, sports, or measurements. The gloss 'narrow majority' applies specifically to voting contexts.
The election result was decided by a narrow margin.
There was a slight difference between the two scores.
Compound of 僅少 (きんしょう, 'a little, slight') and 差 (さ, 'difference'). The exact historical derivation is uncertain, but the word follows a standard Sino-Japanese compounding pattern.