a herd of cows (=a group that are together somewhere)
We had to wait while a farmer brought a herd of cows across the bridge.
Examples from the Corpus
cow• Arizona Game and Fish is offering a $ 500 reward for information on a cowelkpoachingnear Payson about April 17.• Suet, I believe, is cowfat.• This part of WestLondon seemed like the country to me, with none of the disadvantages, no cows or farmers.• a field full of cows• As the cows waited for their turn, the milk fell in drops on the ground.
cow2 verb [transitiveT]
THREATENto frighten someone in order to make them do something 恐吓,威胁
be cowed into something
The protesters had been cowed into submission by the police.