The word companionable 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: 28
Highest Scoring Words With Friends™ Plays In The Letters companionable
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Seven Letter Word Alert: (45 words)
abalone, aeolian, alanine, amiable, amoebic, amoeboa, anaemic, balance, binocle, biplane, boolean, cambial, campion, cannoli, cannolo, capable, coalbin, coalman, coalmen, combine, compile, embolic, impanel, inplace, laminae, lampoon, lineman, manacle, melanin, monocle, nominal, noncola, nonepic, nonleap, nonmail, nonmale, nonmeal, opaline, paceman, panicle, pelican, pemican, placebo, plebian, polemic