Sister is valid Scrabble Word

Is sister a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is sister valid Words with Friends?
Words with Friends YES

Definitions for SISTER in dictionary:

Words related to SISTER

sis3 siss4 sistered9 sistering10 sisterless10 sisterlike14 sisters7

How to use SISTER in a sentence

Find what other words can be done using letters: "sister"
https://scrabble-word.com/finder/sister
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