/'kəʊhɔ:t; `kohɔrt/
n [CGp]
1 (in the army of ancient Rome) each of the ten units forming a legion （古罗马军队的）步兵大队（军团的十分之一）.
2 number of people banded together 一群人; 一帮人.

n[C]
[Date: 1400-1500; Language: Latin;Origin: cohors 'enclosed place, people in an enclosure, unit of soldiers in the ancient Roman army']
someone's cohorts are their friends who support them and stay loyal to them - used in order to show disapproval
　Mark and his cohorts eventually emerged from the studio.
technical a group of people of the same age, social class etc, especially when they are being studied
　a cohort of 386 patients aged 65 plus