Wikidiffcom vs Runway - What's the difference?

As a noun runway is

an airstrip, a (usually) paved section on which planes land or take off.

Wikidiffcom has no English definition. It may be misspelled.

(wikipedia runway)

(en noun)

an airstrip, a (usually) paved section on which planes land or take off

a narrow platform extending from a stage on which people walk, especially used by models in fashion shows

the usual path taken by deer or other wild animals, i.e. from the forest to the stream

a stream bed

* (platform for fashion shows): catwalk