The word cabbageworms 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: 29
Highest Scoring Words With Friends™ Plays In The Letters
Seven Letter Word Alert: (28 words)
agarose, ambsace, amoebas, beswarm, bombers, borages, cabbage, caeomas, cambers, cameras, cargoes, cobbers, cobwebs, combers, corsage, embargo, gabbers, gabbros, gobbers, macabre, mobbers, recombs, rosacea, sarcoma, seaworm, swabber, wargame, webcams