Oxford Dictionary English the old guard nounnoun BrE BrE//ði ˌəʊld ˈɡɑːd// ; NAmE NAmE//ði ˌoʊld ˈɡɑːrd// [singular + singular or plural verb] Add to my wordlistjump to other resultsthe original members of a group or an organization, who are often against change Some of the old guard were resentful that a newcomer had been appointed to the post.See the old guard in the Oxford Advanced American DictionaryCheck pronunciation: the old guard oxfordlearnersdictionaries.com