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
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
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
Some examples of five-letter words that begin and end with the same letter are: radar, level, civic, minim, and kayak.
Chic Ohio