Here are a few for ll and ee:
antipill, antiroll, babydoll, backfill, bankroll, Baseball, beadroll, beanball, bellpull, birdcall, blowball, blueball, bluebell, bluebill, bluegill, boatbill, bonspell, brimfull, carryall, catchall, clodpoll, cockbill, cornball, coverall, deadfall, doorbell, doorsill, downfall, downhill, drumroll, duckbill, dumbbell, dunghill, eggshell, enscroll, enthrall, evenfall, farewell, fastball, fireball, firehall, firewall, fishkill, foosball, football, footfall, foothill, footwall, foretell, forkball, freewill, gildhall, goodwill, goofball, gromwell, hairball, handball, handbill, hardball, harebell, hawkbill, heelball, highball, hornbill, inscroll, inthrall, jackroll, Kickball, lambkill, landfall, landfill, mandrill, marshall, meatball, minipill, misspell, molehill, mothball, numskull, nutshell, outsmell, outspell, overbill, overcall, overfill, overfull, overkill, oversell, pellmell, playbill, plimsoll, poolhall, pratfall, prechill, predrill, puffball, pushball, rainfall, rakehell, reenroll, rockfall, rototill, seashell, shoebill, sidehill, sidewall, snowball, snowbell, snowfall, softball, sourball, spitball, spurgall, subshell, trapball, turnhall, windbell, windfall, windgall, windmill, woolfell
121 words
abductee, absentee, acceptee, acquiree, admittee, allottee, appellee, arrestee, assignee, attendee, axletree, bidarkee, botonnee, bourtree, buckshee, callipee, camporee, carefree, chivaree, colessee, conferee, coryphee, departee, deportee, designee, detainee, disagree, divorcee, dungaree, employee, endorsee, enlistee, enrollee, examinee, expellee, filagree, filigree, fourchee, germfree, gratinee, greegree, honeybee, indictee, indorsee, inductee, internee, jamboree, kedgeree, kidnapee, libellee, licencee, licensee, murderee, negligee, optionee, overfree, patentee, pedigree, pharisee, promisee, protegee, puggaree, rapparee, rejectee, repartee, returnee, rooftree, salvagee, sangaree, selectee, shikaree, shivaree, shoetree, sightsee, squeegee, squilgee, tirrivee, tullibee, vaccinee, wannabee
80 words
4 letter words, letters 2 and 3 are the same:allybeetbeenbeefbeepbeerbeesboomboonbootcookcoolcoopdeepdeeddeerdoomdoorfeedfeelfeesfeetfoodfoolfootgoodheelhoodhoofhoophootjeepkeepleerloomloonlooplootmeetmoodmoonseedeggsElla
addseggsoddsAnnebeefbeenbeepbeerbeetbootbookboomboonbooscoolcootdeerdeepdeeddeemdoordoomfeedfeelfeetfoodfoolfootgoodgeedgoofgoongoopheedheelheedhoodhoofhoophootjeepjeerkeepkeelkeenleekleerloonloomlooplootmeetmoodmoonmoormootneednooknoonpeerpoofpeelpoolpeeppeerroofroomrootreedreelseedseemseenseerseessoonteentooltootwoolweedwoodwoofweep
Four_letter_words_that_have_the_same_letter_for_the_first_and_third
Some seven letter words with the first and sixth letters the same are:abysmalaccrualacrobatadmiralalmanacanagramangulararrivalartisanarsenalcapricechalicecollectcompactconcoctconductconnectcontactconvictcorrectcornicecrevicedecidedegradeearlierepithetescapeefalsifyfortifygarbagegeologyhealthyidioticillicitimperilinertiaingraininhabitinheritinhibitinsulininvalidkaraokelegallylegiblylightlylikablelocallylooselylovableloyallyluckilymacramenirvananothingoctagonopinionoutlookovationoxbloodperhapspreceptpreemptrampartrapturerectoryrequirerestorerevelryrivalryrhubarbrupturesadnesssarcasmselfishsoloiststylishsubsistsuccesssucrosesuggestsupposesurmisesurpasssynapsetaffetatermitethirstythriftytributetrinityuraniumwillowy
Titter, Settee
no. no.
4 letter words, letters 2 and 3 are the same:allybeetbeenbeefbeepbeerbeesboomboonbootcookcoolcoopdeepdeeddeerdoomdoorfeedfeelfeesfeetfoodfoolfootgoodheelhoodhoofhoophootjeepkeepleerloomloonlooplootmeetmoodmoonseedeggsElla
startle
Four_letter_words_that_have_the_same_letter_for_the_first_and_third
addseggsoddsAnnebeefbeenbeepbeerbeetbootbookboomboonbooscoolcootdeerdeepdeeddeemdoordoomfeedfeelfeetfoodfoolfootgoodgeedgoofgoongoopheedheelheedhoodhoofhoophootjeepjeerkeepkeelkeenleekleerloonloomlooplootmeetmoodmoonmoormootneednooknoonpeerpoofpeelpoolpeeppeerroofroomrootreedreelseedseemseenseerseessoonteentooltootwoolweedwoodwoofweep
Some seven letter words with the first and sixth letters the same are:abysmalaccrualacrobatadmiralalmanacanagramangulararrivalartisanarsenalcapricechalicecollectcompactconcoctconductconnectcontactconvictcorrectcornicecrevicedecidedegradeearlierepithetescapeefalsifyfortifygarbagegeologyhealthyidioticillicitimperilinertiaingraininhabitinheritinhibitinsulininvalidkaraokelegallylegiblylightlylikablelocallylooselylovableloyallyluckilymacramenirvananothingoctagonopinionoutlookovationoxbloodperhapspreceptpreemptrampartrapturerectoryrequirerestorerevelryrivalryrhubarbrupturesadnesssarcasmselfishsoloiststylishsubsistsuccesssucrosesuggestsupposesurmisesurpasssynapsetaffetatermitethirstythriftytributetrinityuraniumwillowy
Titter, Settee
ballooningbottleneckbottomlessbuttercupsbuttonholecellphonescorrelatescorrugatescottontailcorrectioncorruptiondifferencedissimilardissonancehammerheadlitterbugsmissionarypassagewaypatterningsaddlebagssettlementwallpaperssleepwalkssweetheart
Bookkeeper
areablabdeedkickkooknounsaysdeadhighhaththatbombtiltpumpsitsnon(french)pulppropfluffhushGrogbobb
Chic Ohio
addallassbeeboocooebbeggerrfeegeeillinnleeloomoooddoffpeeseeteetoozoo