Subcivilization is valid Scrabble Word

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

Definitions for SUBCIVILIZATION in dictionary:

Similar words containing CIVILIZA without suffix tion and without prefix sub

civilizable27 civilization26 civilizations27 civilizational28 supercivilizati31 supercivilization33 supercivilizations34
Find what other words can be done using letters: "subcivilization"
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