n [sing, U]
(a) loud confused noise, eg of many voices; din 喧嚷; 喧闹; 嘈杂声.
(b) disturbance; uproar 混乱; 骚乱; 闹哄哄.
n [singular, U]
Probably from a Celtic
a mixture of loud noises, especially the noise of a lot of people talking at the same time
a situation in which there is a lot of activity, excitement, or argument