the herdPSpeople generally, especially when thought of as being easily influenced by others 〔易受人支配的〕民众，老百姓，芸芸众生 You have to be an individual; it’s no use running with the herd. 你必须特立独行，随大溜没有用处。
the herd instinct (=the need to behave in the same way as everyone else does) 群集本能
herd instinct• But there is a herd instinct.• It seems to me that the Cabinet has an obsessively self-protective herd instinct which could be its undoing.• In my view, it's the herd instinct.
→ the herd at herd1(1)