Synonyms of sib

1 Syllable
aunt, folk, blood, folks
2 Syllables
kinsmen, nephew, in-laws, kinsman, sibling, mother, niece, father, cousin, uncle, inlaw
3 Syllables
cognate, grandparents, kinsperson, agnate, clansperson, connection, stepbrother, stepparent, relation, grandparent, kinswoman, stepsister
4 Syllables
brother-in-law, father-in-law, mother-in-law, sister-in-law, great-grandparents