The word thermometrograph cannot be made in Words With Friends™. It is 16 letters long, too long to fit on a WordsWithFriends board (15 letters max).
Highest Scoring Words With Friends™ Plays In The Letters thermometrograph
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Seven Letter Word Alert: (46 words)
ammeter, armorer, emperor, garotte, greater, grommet, groomer, heather, homomer, meagrer, metamer, moorage, operate, portage, pottage, praetor, pregame, preheat, preterm, program, promote, prorate, protege, regraph, regrate, regroom, remoter, retreat, rotator, taperer, taproom, taproot, tearoom, tempera, tempore, tempter, theater, theatre, theorem, thereat, thereto, trammer, tramper, treater, treetop, trooper