sib

noun 0.766

sibling

noun 0.731

sibling rivalry

noun 0.638

kinship

noun 0.631

sonship

noun 0.612

twinship

noun 0.597

sisterhood

noun 0.580

brotherhood

noun 0.572

sister ship

noun 0.572

family

noun 0.560

sister

noun 0.559

brotherliness

noun 0.557

family size

noun 0.550

half brother

noun 0.545

prole

noun 0.545

half sister

noun 0.539

brother

noun 0.531

kid sister

noun 0.531

subfamily

noun 0.523

immediate family

noun 0.521

family grouping

noun 0.518

little sister

noun 0.518

kid brother

noun 0.518

little brother

noun 0.517

single child

noun 0.509

brood

noun 0.507

famil

noun 0.503

blood relation

noun 0.502