The word cheeseboard 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: 20
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (41 words)
acerose, adheres, barcode, beached, beaches, bedares, bedsore, beeches, beheads, beseech, brocade, cheered, cheesed, cohered, coheres, crashed, creased, debaser, decarbs, decares, decease, decrees, echoers, headers, hearsed, herbose, reached, reaches, rebased, recedes, rechose, recodes, reshoed, roached, roaches, sabered, sarcode, seceder, sheared, sheered, sobered