HERD

[noun] [C + singular or plural verb] - a large group of animals of the same type that live and feed togethera herd of cattle/elephants/goats(esp. disapproving) A herd is also a large group of people that is considered together as a group and not separately.A herd of commuters got off the train.She vowed always to do her own thing and never to follow the herd (= not to do what other people were doing).(disapproving) The herd instinct is the tendency to act like everyone else without considering the reason why.