relation vs kinsperson

relation and kinsperson both are nouns.

Word	Noun	Adjective	Verb	Adverb
relation	Yes	No	No	No
kinsperson	Yes	No	No	No

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

relation (noun)	kinsperson (noun)
an abstraction belonging to or characteristic of two entities or parts together	a person having kinship with another or others
(usually plural) mutual dealings or connections among persons or groups
sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur
(law) the principle that an act done at a later time is deemed by law to have occurred at an earlier time
an act of narration
a person related by blood or marriage