Longman Dictionary of Contemporary English - escort

~1 n 1 a person or a group of people or vehicles that go with someone in order to protect or guard them  (a motorcycle escort | under escort (=protected or guarded by an escort))  (The suspects arrived under armed escort.) 2 someone, especially a man, who takes someone to a formal social event  (Her escort was a handsome young officer.) 3 someone who is paid to go out with someone socially  (She works for an escort agency.) ~2 v 1 to go with someone to protect or guard them  (The visitors were escorted by marine guards to the airport.) 2 to go with someone and show them a place  (escort sb round BrE /around) The Queen was escorted round the factory by two of the managers.