Regularisations is valid Scrabble Word

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

Definitions for REGULARISATIONS in dictionary:

Words related to REGULARISATIONS

regularisation15

Similar words containing GULARISATION without suffix s and without prefix re

regularisation15 singularisation16
Find what other words can be done using letters: "regularisations"
https://scrabble-word.com/finder/regularisations
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