Bristol Channel vs inlet

Bristol Channel and inlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bristol Channel	Yes	No	No	No
inlet	Yes	No	No	No

Bristol Channel (noun)	inlet (noun)
an inlet of the Atlantic Ocean between southern Wales and southwestern England	an opening through which fluid is admitted to a tube or container
	an arm off of a larger body of water (often between rocky headlands)