Preinstallation is valid Scrabble Word

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

Definitions for PREINSTALLATION in dictionary:

Similar words containing INSTALLA without suffix tion and without prefix pre

installant10 installants11 installation12 installations13 reinstallation14 reinstallations15
Find what other words can be done using letters: "preinstallation"
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