The word achievements 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: 25
Highest Scoring Words With Friends™ Play In The Letters achievements
:
Seven Letter Word Alert: (45 words)
achenes, achiest, achieve, actives, aitches, amnesic, anthems, atheise, atheism, cavemen, cements, chasten, chemist, cinemas, emetics, enemies, entices, ethanes, ethenes, ethnics, evenest, evictee, evinces, haemins, heavens, icemans, inmates, invects, machete, machine, matches, matinee, meanest, meanies, menaces, methane, naivest, natives, nematic, seventh, teaches, techies, thieves, vainest, vetches