Upfilling is valid Scrabble Word

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

Definitions for UPFILLING in dictionary:

Words related to UPFILLING

upfill11 upfillings16

Words that contain UPFILLING

upfillings16

Similar words containing UPFILL without suffix ing

upfill11 upfills12 upfilled14 upfillings16
Find what other words can be done using letters: "upfilling"
https://scrabble-word.com/finder/upfilling
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