Definition of herds:
(n) :
A number of domestic animals assembled together under the watch or ownership of a keeper.
(n) :
Any collection of animals gathered or travelling in a company.
(n) :
(now usually derogatory) A crowd, a mass of people or things; a rabble.
(v) :
(intransitive) To unite or associate in a herd; to feed or run together, or in company.
(v) :
(transitive) To unite or associate in a herd
(v) :
(transitive) To manage, care for or guard a herd