loch vs inlet

loch and inlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
loch	Yes	No	No	No
inlet	Yes	No	No	No

As nouns, inlet is a hypernym of loch; that is, inlet is a word with a broader meaning than loch:

loch: a long narrow inlet of the sea in Scotland (especially when it is nearly landlocked)
inlet: an arm off of a larger body of water (often between rocky headlands)

Other hypernyms of loch include recess.

loch (noun)	inlet (noun)
Scottish word for a lake	an opening through which fluid is admitted to a tube or container
a long narrow inlet of the sea in Scotland (especially when it is nearly landlocked)	an arm off of a larger body of water (often between rocky headlands)