depression vs incision

depression and incision both are nouns.

Word	Noun	Adjective	Verb	Adverb
depression	Yes	No	No	No
incision	Yes	No	No	No

As nouns, incision is a hyponym of depression; that is, incision is a word with a more specific, narrower meaning than depression:

depression (noun)	incision (noun)
pushing down	the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
sad feelings of gloom and inadequacy	a depression scratched or carved into a surface
a sunken or depressed geological formation
angular distance below the horizon (especially of a celestial object)
a concavity in a surface produced by pressing
a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity
an air mass of lower pressure; often brings precipitation
a long-term economic state characterized by unemployment and low prices and low levels of trade and investment
a state of depression and anhedonia so severe as to require clinical intervention