From Longman Dictionary of Contemporary Englishfire escapeˈfire esˌcape noun [countable] 
TBBmetal stairs or a metal ladder on the outside of a tall building, that people can use to escape if there is a fire
TBBmetal stairs or a metal ladder on the outside of a tall building, that people can use to escape if there is a fireExamples from the Corpus
fire escape• She and several others scrambled out and on to a fire escape.• We stand in front of the Winston Arms, staring up at the fire escape, then back at the sidewalk.• He turns, but the girl has managed to flee by the fire escape as Lepine makes his way to the bookstore.• Five days ago she fell from the fire escape of her hotel here in San Francisco.• How can Anna get Carl from the window of the room to the fire escape?• In particular, you should familiarise yourself with fire escape routes. c. What about local resort conditions? 