Optimalisations is valid Scrabble Word

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

Definitions for OPTIMALISATIONS in dictionary:

Words related to OPTIMALISATIONS

optimalisation18

Similar words containing OPTIMALISATION without suffix s

optimalisation18
Find what other words can be done using letters: "optimalisations"
https://scrabble-word.com/finder/optimalisations
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