Obsoletion is valid Scrabble Word

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

Definitions for OBSOLETION in dictionary:

Words related to OBSOLETION

obsolescence18 obsoletions13
Find what other words can be done using letters: "obsoletion"
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