The word blowtorches is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 23
Highest Scoring Words With Friends™ Plays In The Letters blowtorches
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Seven Letter Word Alert: (42 words)
bestrow, blowers, boleros, bolster, bolters, booster, booters, borscht, botcher, botches, bothers, bowlers, bowshot, brothel, chooser, chortle, clothes, cohorts, colters, coolers, coolest, cowherb, cowrote, creosol, holster, hostler, howlers, lobster, looters, ocelots, october, reboost, reboots, reshoot, retools, scooter, scowler, shooter, soother, toolers, torches, trowels