Whomso is valid Scrabble Word

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

Definitions for WHOMSO in dictionary:

Words that contain WHOMSO

Find what other words can be done using letters: "whomso"
SCRABBLE® is a registered trademark. We do not cooperate with the owners of this trademark. All trademark rights are owned by their owners and are not relevant to the web site "scrabble-word.com". This site is intended for entertainment and training. We try to make a useful tool for all fans of SCRABBLE. "Scrabble Word" is the best method to improve your skills in the game.