Fire escape and Motility

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

Motility and fire escape are semantically related. In some cases you can use "Motility" instead a noun phrase "Fire escape".

Motility noun - Ability to move spontaneously and independently.

Fire escape and motility are semantically related. Sometimes you can use "Fire escape" instead a noun "Motility".