Yo! From the Official Scrabble Players' Dictionary (official for America only, btw), here is a list of the words that you can make when you have no other options, when you feel like being a two-year-old, when you need to rack up a bajilion points with one well-placed "X", or when you're feeling pedantic and want someone to challenge your word so you can take an extra go on that triple word score square. Tournament players have this list memorized; world-class players do the three letter Scrabble words as well. There are some who have even learned the four letter words--and your mother told you what happens to people who learn too many four letter words, right?

But I digress. Here, for your Scrabble pleasure, morbid curiosity, and your burgeoning vocabulary, it is:

AA	rough, cindery lava
AB abdominal muscle
AD advertisement
AE one (UK)
AG pertaining to agriculture
AH interjection expressing understanding
AI three-toed sloth
AL East Indian tree
AM be, conjugated: to exist, 1st person
AN indefinite article
AR the letter 'R'
AS to the same degree
AT in the location of
AW interjection expressing disbelief
AX to cut with an ax
AY aye, yes
BA eternal soul in Egyptian mythology
BE to exist
BI bisexual
BO pal
BY side issue
DE of, from
DO to execute/first tone of musical scale
ED education {OSPD3}
EF letter 'F'
EH interjection used to indicate lack of understanding
EL letter 'L'
EM printer's measurement
EN printer's measurement
ER interjection expressing hesitation
ES letter 'S'
ET ate
EX letter 'X'
FA fourth tone of diatonic musical scale
GO to leave
HA sound expressing triumph
HE male person
HI interjection used as a greeting
HM interjection expressing thought
HO interjection used to attract attention to something
ID part of psyche related to instinctual impulses
IF possible condition
IN influence
IS to be, third person
IT person playing tag/indefinite pronoun
JO sweetheart
KA Egyptian spiritual self
LA sixth tone of diatonic musical scale
LI Chinese unit of distance
LO interjection used to attract attention
MA mother
ME pronoun referring to myself
MI third tone of diatonic musical scale
MM interjection expressing satisfaction
MO moment
MU Greek letter
MY possessive prounoun
NA no
NE born with the name of (nee)
NO negative reply
NU Greek letter
OD hypothetical force of natural power
OE Faroean wind
OF coming from
OH exclamation
OM mantra used in meditation
ON not off
OP style of abstract art
OR the color gold, esp. in heraldry
OS orifice/bone/ridge of sand (esker)
OW interjection expressing sudden pain
OX hoofed mammal/clumsy person
OY interjection expressing dismay
PA father
PE Hebrew letter
PI Greek letter
RE second tone of diatonic musical scale
SH interjection used to urge silence (shh)
SI seventh tone of diatonic musical scale (also: ti)
SO fifth tone of diatonic musical scale
TA thanks
TI seventh tone of diatonic musical scale
TO toward
UH interjection expressing hesitation
UM interjection expressing hesitation
UN one
UP to raise
US objective pronoun for "we"
UT musical tone in French solmization system
WE plural pronoun
WO woe
XI Greek letter
XU Vietnamese monetary unit
YA you
YE you
YO interjection used to call attention