Counterstrategies is valid word

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

17 letters word
20 points in Scrabble
24 points in WWF

Definitions for COUNTERSTRATEGIES in dictionary:

NOUN [PLURAL STRAT·E·GIES.]:

skillful use of a stratagem: The salesperson's strategy was to seem always to agree with the customer.

NOUN [PLURAL STRATÂ·EÂ·GIES.]:

the science or art of combining and employing the means of war in planning and directing large military movements and operations.
the use or an instance of using this science or art.
a plan, method, or series of maneuvers or stratagems for obtaining a specific goal or result: a strategy for getting ahead in the world.

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

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.