From Longman Dictionary of Contemporary Englishpersonal assistantˌpersonal asˈsistant noun [countable] (abbreviation PA) 1 someone who works for one person and helps them do their job2 British EnglishBOB someone who works as a secretary for one person
Examples from the Corpus
personal assistant• I had been working for the Countess as a personal assistant since she married the Earl in 1976.• It was this, Blanche said, that had pushed her towards phoning his personal assistant and arranging the interview that night.• On July 23 Buthelezi's personal assistant, Zakhele Khumalo, resigned.• The Secretary had in fact become a public officer, no longer merely the personal assistant of the monarch.From Longman Business Dictionarypersonal assistantˌpersonal asˈsistant abbreviation PAJOB1a secretary who works for one person, organizing their work, meetings etcI phoned his personal assistant to arrange an interview.2someone whose job is to help an employee of a higher rank by doing some of their work for them → assistant 