Sillinesses is valid Scrabble Word

Is sillinesses a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is sillinesses valid Words with Friends?
Words with Friends YES

Definitions for SILLINESSES in dictionary:

Words related to SILLINESSES

silly8

How to use SILLINESSES in a sentence

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