Controllably is valid Scrabble Word

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

Definitions for CONTROLLABLY in dictionary:

Words related to CONTROLLABLY

control9 controllable16

How to use CONTROLLABLY in a sentence

Find what other words can be done using letters: "controllably"
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