runways

A defined, narrow section of land or an artificial structure used for access.

The usual path taken by deer or other wild animals, such as from a forest to a water source.

A narrow walkway (often on a platform) extending from a stage on which people walk, especially one used by models during fashion shows.

In javelin, long jump, and similar events: a short track along which athletes can accelerate themselves for their jumps or throws.

A section of land, usually paved, for airplanes to land on or take off from.

Hence, the number of months that a startup company can operate on its cash reserves.

A stream bed.