Niggering is valid word

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

Definitions for NIGGERING in dictionary:

Words related to NIGGERING

nigger8
Find what other words can be done using letters: "niggering"
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