Depending on the position of the board and the tiles presented on your rack, any word can be a good word. Example: HI is a simple and common two letter word, put when placed on a triple letter score and forming a second word in the opposite direction, you score a minimum of 26 points, which is rather decent in a Scrabble game. Of course, bingos don't hurt either, but to say that any ONE word in the dictionary is a good word would be remiss.
Try learning some word list like all the 2 letter words and 3 letter words. It's a good start.
Some words that can be used in Scrabble with the letters AL:AlackAlarmAlasAlbeitAlbumAlchemyAlcoholAlcoveAlderAleeAlertalertedalertfulAlewifeAlgaAlgaeAlgebraAliasAlibiallAlienAlightAlignAlikeAlineAlimonyAliquotAlitAliveAllergyAlloyAlludeAllureAllyAlmondAloeAlsoAltarAlterAltoAlum
Some scrabble words that end with Z are:adzblintzblitzbuzzchintzditzfezfizzfrizzfuzzglitzjazzkibbutzpizazzquartzquizRitztopazwaltzwhiz
There are no English Scrabble words that end with BZA.
Some Scrabble words that end with O are:banjocockatoocombocommandocuriododominodumbodynamoechogizmogogoohalohelloherokangarookazookiddokilokimonomemonopatiopeekaboopotatoradiorodeosotattoototomatotootornadotorsotriovetovideovirtuosowhowooyahoozerozoo
easiest
Some Scrabble words that end with 'irt' are:dirtflirtshirtskirtsquirt
Some Scrabble words that start with U are:upususeunderuncleurineuntoundounclearunnecessaryumbrellaurgentuglyusefulumberutilityunusualunguentuniversalupperundulyundecidedutmostunitunmanageable
Some words with C and J:CajoleCajunConjectureConjoinConjugateConjunctionConjunctConjureJacketJuncoJunctionJuncture
Some words that end with NO are:albinoaminocasinodominoinfernojalapenokenokimonomaraschinomerinoneutrinonooreganopalominopianorhinosopranostenovolcanowino
Some words that end with 'rid' are:acridaridfloridgridhorridhybridluridputridridtorrid
Some words that end in 'dee' are:attendeeawardeechickadeestandee
Some words with FF:BaffleBluffBuffBuffaloBuffedBufferBuffetCaffCaffeineCliffCoffeeCoffinCuffCuffedCuffsDifferDoffDuffDuffelFluffFluffsFluffyGaffGriffGruffGuffHuffHuffedJiffLuffMiffMuffMuffinMuffleMufflerMufflesOffOffalOffedOfferOffsPuffPufferPuffinPuffsQuaffQuiffRaffRaffleRiffRiffedRiffleRuffRuffleScoffScruffScuffSniffSnuffSpiffStaffStiffStuffSufferSuffixTiffToffToffeeWaffleWhiff