Two Letter Words

AA rough, cindery lava

AB abdominal muscle {OSPD3} AD advertisement AE one AG pert. to agriculture  AH to exclaim in amazement AI three-toed sloth AL East Indian tree AM [be-conj] (to exist) AN indefinite article  AR letter 'r' AS to the same degree AT in the location of AW intj. expressing disbelief AX to cut with an ax  AY aye 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 intj. used to indicate lack of understanding EL letter 'l' EM printer's measurement EN printer's measurement ER intj. expressing hesitation  ES letter 's' ET [eat-conj] (to consume) EX letter 'x' FA fourth tone of diatonic musical scale  FE Hebrew letter (feh, pe) {OSPD4}  GO to leave/Japanese board game HA sound expressing triumph HE male person HI intj. used as a greeting HM intj. expressing thought (hmm)  HO intj. used to attract attention to something ID part of psyche related to instinctual impulses  IF possible condition IN influence IS [be-conj] (to exist)  IT person playing tag/indefinite pronoun JO sweetheart  KA Egyptian spiritual self  KI vital life-sustaining energy force (qi) {OSPD4} LA sixth tone of diatonic musical scale  LI Chinese unit of distance LO intj. used to attract attention MA mother  ME pronoun referring to myself MI third tone of diatonic musical scale  MM intj. 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 to exclaim "oh" OI intj. expressing dismay (oy) {OSPD4} OM mantra used in meditation ON side of wicket where cricket batsman stands  OP style of abstract art OR heraldic color gold OS orifice/bone/ridge of sand (esker) OW intj. expressing sudden pain OX hoofed mammal/clumsy person  OY intj. expressing dismay PA father  PE Hebrew letter PI Greek letter/to jumble QI vital life-sustaining energy force {OSPD4}  RE second tone of diatonic musical scale  SH intj. used to urge silence (shh)  SI seventh tone of diatonic musical scale (ti) SO fifth tone of diatonic musical scale TA thanks   TI seventh tone of diatonic musical scale TO toward UH intj. expressing hesitation  UM intj. 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 intj. used to call attention {OSPD3}  ZA pizza {OSPD4}