1. noun
a) A body of armed men to attend a person of distinction for the sake of affording safety when on a journey; one who conducts some one as an attendant; a guard, as of prisoners on a march; also, a body of persons, attending as a mark of respect or honor; applied to movements on land, as convoy is to movements at sea.
The troops of my escort marched at the ordinary rate. -Burke.
b) An accompanying person in a social gathering etc.
2. verb
To attend with a view to guard and protect; to accompany as safeguard; to give honorable or ceremonious attendance to; used especially with reference to journeys or excursions on land; as, to escort a public functionary, or a lady; to escort a baggage wagon.
Wikipedia foundation.