Substruction is valid Scrabble Word

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

12 letters word
16 points in Scrabble
21 points in WWF

Definitions for SUBSTRUCTION in dictionary:

NOUN:

an underlying structure
Underbuilding; the foundation, or any preliminary structure intended to raise the lower floor or basement of a building above the natural level of the ground.

Words related to SUBSTRUCTION

substruct13

Find what other words can be done using letters: "substruction"
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