seclusion vs cocooning

seclusion and cocooning both are nouns.

Word	Noun	Adjective	Verb	Adverb
seclusion	Yes	No	No	No
cocooning	Yes	No	No	No

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

seclusion: the act of secluding yourself from others
cocooning: retreating to the seclusion of your home (as for privacy or escape)

seclusion (noun)	cocooning (noun)
the act of secluding yourself from others	retreating to the seclusion of your home (as for privacy or escape)
the quality of being secluded from the presence or view of others