I hope wordcrafter doesn't mind my crashing the Vocabulary Forum but it seems to be the best place for this.

I sometimes play scrabble against my computer. Usually I have the computer skill level set to 15. I decided to play at 2o, the maximum level and in consecutive games it game up with all of the following.

MOZO

SMAZE
US - a smokey haze, less damp than a fog

KEX
any of several large hollow stemmed umbelliferous plants

TEWED

FAZES
disconcert, worry, disturb

FETUS
Alternate spelling for foetus

RAYAH
a non-Muslim subject of the Ottoman Empire

AR
the letter "R"

ONAGER
a Persian variety of wild ass

OCHONE
Scottish or Irish: an expression of grief

UMIAQ
alt. spelling for umiak or oomiak - an Eskimo boat

DISTAL
Anatomy (of muscle, bone, limb etc) situated furthest from the centre

YAUTIA
any of several Wast Indian plants of genus Xanthosoma

TITRE
the concentration of a solution as determined by titration

FEME
Law: a woman or wife

INTITULE
Parliamentary procedure: to entitle

AVO

The two in boldface I haven't found in the dictionary.
Strange to say I lost both games and reset the computer skill level to 15 where I sometimes win.

Why should I let the toad work
Squat on my life ?
Can't I use my wit as a pitchfork
And drive the brute off ?
Read all about my travels around the world here.
Read even more of my travel writing and poems on my weblog.

Never did like high-level Scrabble, Stefan Fatsis' Word Freak notwithstanding, for precisely that reason. The players aren't dealing with words, just with entries in a well-defined list. No, make that one of two lists, one for US Scrabble, and the other for international Scrabble. Might as well be made up of "@#$%^&*()..." as "abcdefghi..". A few reasonably competent players even speak no English at all, but they're good at list memorization and manipulation.

There is some overlap with the language used by most of us most of the time, but there really doesn't need to be.