mishpachah vs kin group

mishpachah and kin group both are nouns.

Word	Noun	Adjective	Verb	Adverb
mishpachah	Yes	No	No	No
kin group	Yes	No	No	No

As nouns, kin group is a hypernym of mishpachah; that is, kin group is a word with a broader meaning than mishpachah:

mishpachah: (Yiddish) the entire family network of relatives by blood or marriage (and sometimes close friends)
kin group: group of people related by blood or marriage

Other hypernyms of mishpachah include clan, kin, kindred, kinship group, tribe.

mishpachah (noun)	kin group (noun)
(Yiddish) the entire family network of relatives by blood or marriage (and sometimes close friends)	group of people related by blood or marriage