1. noun /həːd/
a) A number of domestic animals assembled together under the watch or ownership of a keeper.
The lowing herd wind slowly o’er the lea.
b) Any collection of animals gathered or travelling in a company.
Zakouma is the last place on Earth where you can see more than a thousand elephants on the move in a single, compact herd.
2. verb /həːd/
a) To unite or associate in a herd; to feed or run together, or in company.
Sheep herd on many hills.
b) To associate; to ally ones self with, or place ones self among, a group or company.
I’ll herd among his friends, and seem One of the number. Addison.
Wikipedia foundation.