There are 53 words hidden in the letters of SPEAKS, from 9 two-letter words up to SPEAKS (6 letters). For points, SPEAKS is best at 12.
No other single word uses all 6 letters of SPEAKS. SPEAKS has 6 letters: 2 vowels and 4 consonants, worth 12 points before any board bonuses.
6-letter words 1
5-letter words 9
apses7pases7passe7peaks11sakes9skeps11spaes7spake11speak11
4-letter words 18
apes6apse6asks8asps6kaes8keas8keps10pase6pass6peak10peas6sake8saps6seas4skas8skep10spae6spas6
3-letter words 16
ape5ask7asp5ess3kae7kas7kea7kep9pas5pea5pes5sae3sap5sea3ska7spa5
2-letter words 9
ae2as2es2ka6ks6pa4pe4ps4ss2
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.