The word allomerisms 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: 19
Highest Scoring Words With Friends™ Play In The Letters allomerisms
:
Seven Letter Word Alert: (32 words)
aimless, airless, armless, immoral, isomers, lassoer, loamier, lossier, mailers, maimers, memoirs, millers, mimosas, morales, morsels, mossier, oarless, rallies, realism, remails, resails, resoils, rimless, sailers, sailors, serials, simmers, slaloms, slammer, slimmer, smaller, smilers