Meaning of sibling

sib•ling

Pronunciation: (sib'ling), [key]
— n.
  1. a brother or sister.
  2. a comember of a sib.
—adj.
  1. of or pertaining to a brother or sister: sibling rivalry.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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