Complementiser is valid Scrabble Word

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

Definitions for COMPLEMENTISER in dictionary:

Words related to COMPLEMENTISER

complementizer31

Words that contain COMPLEMENTISER

complementisers23

Similar words containing MPLEMENTIS without suffix er and without prefix co

complementisers23
Find what other words can be done using letters: "complementiser"
https://scrabble-word.com/finder/complementiser
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