The word bombardiers 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: 21
Highest Scoring Words With Friends™ Play In The Letters bombardiers
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Seven Letter Word Alert: (51 words)
abiders, admirer, admires, adorers, airbeds, ambries, ambroid, ameboid, arbored, armoire, armored, barbers, barbies, barmier, birders, boarder, bombard, bombers, borders, braider, braised, braiser, brasier, bribers, broader, bromide, bromise, dabbers, dibbers, disrobe, dormers, drabber, dribber, married, marries, mirador, misdoer, misread, mobbers, rabider, radomes, raiders, ramrods, reboard, rebraid, roadies, roamers, robbers, seabird, sidearm, sidebar