What It Scores
TACHYON is a valid word in the tournament list this site uses. Tile values only, before any premium square: 15 in Scrabble and 16 in Words With Friends. The letters break down as T1 A1 C3 H4 Y4 O1 N1.
At seven letters this plays a whole rack, which is a bingo and worth 65 in Scrabble once the 50 point bonus lands.
Words Made From The Letters In TACHYON
107 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 (4)
5 letter words (17)
4 letter words (28)
ACHYAHOYATOCCANTCANYCHAOCHATCHAYCHONCOATCONYCOTHCYANHANTHOYANACHNOAHNOTAOATHOATYOCTATACHTACOTANHTHANTHONTONYYONT
3 letter words (41)
ACHACTANTANYCANCATCAYCHACONCOTCOYHANHAOHATHAYHOAHOCHONHOTHOYNAHNATNAYNOHNOTNOYNTHOATOCAOCHONYTANTAOTAYTHOTHYTOCTONTOYYAHYON
2 letter words (17)
Next: the Word Unscrambler for any letters at all. Full entry and definition at Merriam-Webster.