Four-letter words that have "A" as their second letter and "N" as their third letter:
band, bans, land, pans, pant, rant, sand, sans, tans, wand, want.
addseggsoddsAnnebeefbeenbeepbeerbeetbootbookboomboonbooscoolcootdeerdeepdeeddeemdoordoomfeedfeelfeetfoodfoolfootgoodgeedgoofgoongoopheedheelheedhoodhoofhoophootjeepjeerkeepkeelkeenleekleerloonloomlooplootmeetmoodmoonmoormootneednooknoonpeerpoofpeelpoolpeeppeerroofroomrootreedreelseedseemseenseerseessoonteentooltootwoolweedwoodwoofweep
pies
Four letter words with X as the third letter:boxyfoxyluxenextpoxysexytaxitextwaxy
4 letter words, letters 2 and 3 are the same:allybeetbeenbeefbeepbeerbeesboomboonbootcookcoolcoopdeepdeeddeerdoomdoorfeedfeelfeesfeetfoodfoolfootgoodheelhoodhoofhoophootjeepkeepleerloomloonlooplootmeetmoodmoonseedeggsElla
baitblipbrimboilchinchipclipcoincoilcribdripflipfoilgripgrimgringritglibloinmainmaidmailnailomitpailpairpainprimquitrainraidrailsoilsailsaidshinshipslimslitslidslipsnipstirswimtoiltrimthinthistriptailunitvainwhitwait
Haul and laud are four letter words. The 2nd letter is a. The 3rd letter is u.
addseggsoddsAnnebeefbeenbeepbeerbeetbootbookboomboonbooscoolcootdeerdeepdeeddeemdoordoomfeedfeelfeetfoodfoolfootgoodgeedgoofgoongoopheedheelheedhoodhoofhoophootjeepjeerkeepkeelkeenleekleerloonloomlooplootmeetmoodmoonmoormootneednooknoonpeerpoofpeelpoolpeeppeerroofroomrootreedreelseedseemseenseerseessoonteentooltootwoolweedwoodwoofweep
hymn
ahem, chez, phew, shed, they, when, them
pies
Four letter words with X as the third letter:boxyfoxyluxenextpoxysexytaxitextwaxy
4 letter words, letters 2 and 3 are the same:allybeetbeenbeefbeepbeerbeesboomboonbootcookcoolcoopdeepdeeddeerdoomdoorfeedfeelfeesfeetfoodfoolfootgoodheelhoodhoofhoophootjeepkeepleerloomloonlooplootmeetmoodmoonseedeggsElla
Some four letter words with O as the third letter are:aloeanonatomblobblotblowbookboomboonboorbootbrowbuoychopchowclodclogclotcloycookcoolcropdoomdoordropflogflopflowfoodfoolfootfrogfromglowgoodgoofgrowhoodhoofhookhoopiconidolironknobknotknowlionlookloomloonmeowmoodmoonmoormootneonnookoboeplodplotplowploypoofpoohpoolpoorprompropprowroofroomrookrootscowshodshopshotshowslopsmogsnobsoonsootspotstopthoutooktoottrodtrotuponwhoawhomwoodwoofwoolzoom
gain.
Skin
baitblipbrimboilchinchipclipcoincoilcribdripflipfoilgripgrimgringritglibloinmainmaidmailnailomitpailpairpainprimquitrainraidrailsoilsailsaidshinshipslimslitslidslipsnipstirswimtoiltrimthinthistriptailunitvainwhitwait
baht