notch vs Cumberland Gap

notch and Cumberland Gap both are nouns.

Word	Noun	Adjective	Verb	Adverb
notch	Yes	No	Yes	No
Cumberland Gap	Yes	No	No	No

notch (noun)	Cumberland Gap (noun)
a small cut	a pass through the Cumberland Mountains between Virginia and Kentucky that early settlers used in order to move west
a V-shaped or U-shaped indentation carved or scratched into a surface
the location in a range of mountains of a geological formation that is lower than the surrounding peaks
a V-shaped indentation

notch (verb)	Cumberland Gap (verb)
notch a surface to record something
cut or make a notch into