The word dimensional 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
Seven Letter Word Alert: (56 words)
adonise, almonds, amidone, amnions, anilide, aniline, animose, annelid, anodise, asinine, daemons, dailies, denials, diamine, diosmin, doilies, domains, elision, idolise, indians, indoles, inlands, inlines, inosine, iodines, ionised, lamnoid, liaised, liaison, lindens, lineman, lionise, lionism, maidens, mansion, medians, melanin, midline, minions, misdeal, misdial, misdone, mislaid, mislead, monilia, nominal, nonlead, nonmail, nonmale, nonmeal, nonsale, sandmen, sealion, seminal, sideman, snailed