What It Scores
PROSIER is a valid word in the tournament list this site uses. Tile values only, before any premium square: 9 in Scrabble and 10 in Words With Friends. The letters break down as P3 R1 O1 S1 I1 E1 R1.
At seven letters this plays a whole rack, which is a bingo and worth 59 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In PROSIER
129 shorter words come out of these tiles. On a board that matters more than the long play, because a short word on a premium square often beats a long one on plain squares.
6 letter words (15)
5 letter words (29)
EPRISORRISOSIERPERISPIERSPOISEPORERPORESPOSERPRIERPRIESPRIORPRISEPROREPROSEREPOSREPRORIPERRIPESRISERROPERROPESRORESRORIESORERSPEIRSPIERSPIRESPORE
4 letter words (36)
EPOSEROSERRSIRESOPESORESPERIPESOPIERPIESPIRSPISEPISOPOISPOREPOSEPROSREISREOSREPOREPSRIPERIPSRISERISPROESROPEROREROSESEIRSERRSIPESIRESORESORISPIE
3 letter words (34)
ERRERSIOSIREISOOESOISOPEOPSOREORSOSEPERPESPIEPIRPISPOIPOSPREPROPSIREIREOREPRESRIPROESEISERSIPSIRSOPSRI
2 letter words (15)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.