The word turtledoves 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: 18
Highest Scoring Words With Friends™ Play In The Letters turtledoves
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Seven Letter Word Alert: (52 words)
delouse, delvers, detorts, detours, devotes, devours, dotters, dottles, dovelet, duelers, eluders, elutors, evulsed, letters, loudest, louvers, louvred, louvres, outlets, overdue, overled, overset, overuse, resoled, resolve, revolts, revoted, revotes, revulse, roselet, rosette, rustled, servlet, settled, settler, slotted, stouter, strudel, svelter, teleost, tousled, touters, trestle, trusted, trustee, turtles, tutored, tutoree, uttered, velours, vetoers, volutes