Stellio is valid Scrabble Word

Is stellio a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is stellio valid Words with Friends?
Words with Friends NO

Definitions for STELLIO in dictionary:

Words that contain STELLIO

stellion8 stellions9 stellionate11 stellionates12
Find what other words can be done using letters: "stellio"
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