matrilineal sib vs matrilineal kin

matrilineal sib and matrilineal kin both are nouns.

Word	Noun	Adjective	Verb	Adverb
matrilineal sib	Yes	No	No	No
matrilineal kin	Yes	No	No	No

As nouns, matrilineal sib and matrilineal kin are synonyms defined as:

Other synonyms of matrilineal sib include enate, matrikin, matrisib.

matrilineal sib (noun)	matrilineal kin (noun)
one related on the mother's side	one related on the mother's side