Fire escape and Scaling ladder

Fire escape noun - A stairway (often on the outside of a building) that permits exit in the case of fire or other emergency.

Scaling ladder and fire escape are semantically related. In some cases you can replace phrase "Scaling ladder" with "Fire escape", this phrases are similar.

Scaling ladder noun - A ladder used to scale walls (as in an attack).

Fire escape and scaling ladder are semantically related. You can use "Fire escape" instead a noun phrase "Scaling ladder".