runway vs slideway

runway and slideway both are nouns.

Word	Noun	Adjective	Verb	Adverb
runway	Yes	No	No	No
slideway	Yes	No	No	No

As nouns, slideway is a hypernym of runway; that is, slideway is a word with a broader meaning than runway:

Other hypernyms of runway include chute, slide, sloping trough.

runway (noun)	slideway (noun)
a strip of level paved surface where planes can take off and land	sloping channel through which things can descend
a narrow platform extending from the stage into the audience in a theater or nightclub etc.
a bar or pair of parallel bars of rolled steel making the railway along which railroad cars or other vehicles can roll
a chute down which logs can slide