Principial is valid Scrabble Word

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

Definitions for PRINCIPIAL in dictionary:

Words related to PRINCIPIAL

elementary15

Similar words containing PRINCIPI without suffix al

principi14 principia15 principium18
Find what other words can be done using letters: "principial"
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