CERTAIN SIB Crossword Clue

The most common solutions for the crossword clue "CERTAIN SIB" are SIS with 3 letters, BRO with 3 letters.
We know 2 solutions for: CERTAIN SIB
Crossword Puzzle Infos
The term CERTAIN SIB refers to a brother (BRO) and sister (SIS). This term is used to describe siblings who are both certain, or sure, of their relationship. Brothers and sisters often share a close bond and have a special connection that can last a lifetime.
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