sistership vs kinship

sistership and kinship both are nouns.

Word	Noun	Adjective	Verb	Adverb
sistership	Yes	No	No	No
kinship	Yes	No	No	No

As nouns, kinship is a hypernym of sistership; that is, kinship is a word with a broader meaning than sistership:

sistership: the kinship relation between a female offspring and the siblings
kinship: (anthropology) relatedness or connection by blood or marriage or adoption

Other hypernyms of sistership include family relationship, relationship.

sistership (noun)	kinship (noun)
an association or society of women who are linked together by a common religion or trade or interest	(anthropology) relatedness or connection by blood or marriage or adoption
the kinship relation between a female offspring and the siblings	a close connection marked by community of interests or similarity in nature or character