Tetrathlons is valid Scrabble Word

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

Definitions for TETRATHLONS in dictionary:

Words related to TETRATHLONS

tetrathlon13

Similar words containing TETRATHLON without suffix s

tetrathlon13
Find what other words can be done using letters: "tetrathlons"
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