Oxford Dictionary English Permanent Undersecretary nounnoun BrE BrE//ˌpɜːmənənt ˈʌndəsekrətri// ; NAmE NAmE//ˌpɜːrmənənt ˈʌndərsekrəteri// (also Permanent Secretary) Add to my wordlistjump to other results (in Britain) a person of high rank in the civil service, who advises a Secretary of State compare undersecretaryCheck pronunciation: Permanent Undersecretary oxfordlearnersdictionaries.com