One example of a four-letter word where the second and last letters are the same is "ball." In this word, the second letter 'a' is the same as the last letter 'l.' Another example is "hall," where the second letter 'a' is also the same as the last letter 'l.' These are known as palindromic words, where the word reads the same forwards and backwards.
There are nearly 200:AcmeAgmaAimsAlmaAlmeAlmsAmmoArmsArmyAtmaBamsBemaBimaBombBumfBumpBumsCameCamoCampCamsComaCombComeCompCwmsCymaCymeDameDamnDampDamsDemeDemoDemyDimeDimsDomeDomsDumaDumbDumpElmsElmyEmmyFameFemeFemsFumeFumyGamaGambGameGampGamsGamyGemsGimpGumsGymsHameHamsHemeHempHemsHimsHomeHomoHomyHumpHumsHymnIambImmyIsmsJambJamsJimpJumpKameKamiKempLamaLambLameLampLamsLimaLimbLimeLimnLimoLimpLimyLumaLumpLumsMamaMemeMemoMemsMimeMomeMomiMomsMummMumpMumsMumuNameNemaNimsNomaNomeNomsNumbOhmsPamsPimaPimpPomePomoPompPomsPumaPumpRamiRampRamsRemsRimeRimsRimyRompRomsRumpRumsSameSampSemeSemiShmoSimaSimpSimsSomaSomeSomsSumoSumpSumsTameTampTamsTempTimeTombTomeTomsTumpVampVimsWameWimpWombYamsZyme
There are a number of words with that letter combination. Examples include:bungburgdunghunglungrungsungpungtung
The first one that comes to mind is four; others are:anusaquablueblurboutchugchumclubcluecoupcrudcruxdaubdourdrugdrumfaunfauxfluxfoulglueglumglutgoutgrubhaulhourlaudloudloutmaulnounonusopusovumplugplumpluspoufpourpoutroutscumshunshutslugslumslursmugsmutsnubsnugsoulsoupsourspudtautthudthugthustourtrueyour
Ohio
have
Lake HURONSome words that have O as the second to last letter are:actorarborardorbloombroomcolordroopgloomgroomheronfloorfurormajormayormelonmoronmotorproofrumorsalonshootspoontumorvalorvaporwhoop
Milk.
BiggerBetterHigher
already
geeseorderpriorteaseceaseleasedryerpeacepastaversemottosalsaparkanerveservetersekarmastartstintstiltaddedaidedmergeledgehedgesergewedgecallagammamannaseizeteaseerrorrodeopoliofencetensedensepencepandamambasambapapaw
Eleven letter words with second letter U, last letter R are:bullfighterbushwhackerquicksilverrumormongersupertankersurfboarder
jump (as in long jump)