Here is list of words with a double 'V'
Some of these words are rarely used, or are only used in limited circumstances.
Some words with a double 'h' are:bathhousefishhookhitchhikerhighhandedroughhewnroughhouseshhwithhold
Some words that have two Vs are:conservativeconvivialconvulsivederivativeevocativeevolveinvectiveinventiveinvolveoverachieveroveractiveoverdriveoverviewpervasivereviverevolverevolversavvyskivviessubversivesurvivevalvevaudevillevivavivaciousvotivevulva
Some double N words are:announceannoyannexanniversaryantennaannualbandannabannerbanningbeginningbonnetbunnycanneryconnectcannibalcanningcannoncannulacayennechannelconnoteconnoisseurcunningdinnerdisconnectevennessfanningfennelflannelfunnelfunnygrannygrinninghennainninnateinnerinningjuliennekennelmannersmanningmannishmayonnaisenannyninnynunneryopennesspanningpennantpennypinnaclepinningplanningquestionnairereconnectroadrunnerrunningrunnyscanningskinnysonnetspinningstunningsunnytanningtennistunneltyrannyuncannyunnerveunnoticedwinningwinnowzinnia
Some words that have double Es are:agreeamputeeapogeebansheebeebeechbeefbeenbeepbeerbeetbeetlebeseechbetweenbleedbooteebreechbreedbreezebungeecanteencareencareercheekcheepcheercheesecheetahchickadeecoffeecouleecreelcreepdecreedeeddeemdeepdeerdegreediscreetemceeengineerexceedfeefeeblefeedfeelfeetfianceefiligreefleefleecefleetfreefreezegeekgeesegenteelgleegoateegreedygreengreetheedheeljamboreejeepjeerjubileekeelkeenkeepkneeleeleechleekleerleveelicheemanateemarqueemeekmeetmeleeneeneedneedlenegligeeoverseeparakeetpedigreepeepeekpeelpeeppeerpeevepeeweepreemiepreemptpreenproceedprotegeepureequeenqueerreedreefreeferreekreelrefereerefugeerupeesateenscreescreechscreenseeseedseekseemseenseepseerseesawseethesheensheepsheersheetskeetsleeksleepsleetsleevesneersneezespeechspeedspleenspreesqueegeesqueezesteedsteelsteepsteeplesteersteeragestreetsucceedsweepsweetteeteemteenteethteethetepeetheethreetoffeetoupeetreetureentweedtweettweezerveejayveerveneerweeweedweekweenweepweevilwheewheedlewheelwheezeyippee
Some words with two Vs are velvet, vivid, vivacious, Volvo, and Vesuvius.
Some words with a double 'h' are:bathhousefishhookhitchhikerhighhandedroughhewnroughhouseshhwithhold
Some words that have two Vs are:conservativeconvivialconvulsivederivativeevocativeevolveinvectiveinventiveinvolveoverachieveroveractiveoverdriveoverviewpervasivereviverevolverevolversavvyskivviessubversivesurvivevalvevaudevillevivavivaciousvotivevulva
Some double N words are:announceannoyannexanniversaryantennaannualbandannabannerbanningbeginningbonnetbunnycanneryconnectcannibalcanningcannoncannulacayennechannelconnoteconnoisseurcunningdinnerdisconnectevennessfanningfennelflannelfunnelfunnygrannygrinninghennainninnateinnerinningjuliennekennelmannersmanningmannishmayonnaisenannyninnynunneryopennesspanningpennantpennypinnaclepinningplanningquestionnairereconnectroadrunnerrunningrunnyscanningskinnysonnetspinningstunningsunnytanningtennistunneltyrannyuncannyunnerveunnoticedwinningwinnowzinnia
Some words that have UU in them are:continuummuumuuresiduumvacuum
Some examples of words with double consonants are: balloon, happy, coffee, pepper.
Some words that have double Es are:agreeamputeeapogeebansheebeebeechbeefbeenbeepbeerbeetbeetlebeseechbetweenbleedbooteebreechbreedbreezebungeecanteencareencareercheekcheepcheercheesecheetahchickadeecoffeecouleecreelcreepdecreedeeddeemdeepdeerdegreediscreetemceeengineerexceedfeefeeblefeedfeelfeetfianceefiligreefleefleecefleetfreefreezegeekgeesegenteelgleegoateegreedygreengreetheedheeljamboreejeepjeerjubileekeelkeenkeepkneeleeleechleekleerleveelicheemanateemarqueemeekmeetmeleeneeneedneedlenegligeeoverseeparakeetpedigreepeepeekpeelpeeppeerpeevepeeweepreemiepreemptpreenproceedprotegeepureequeenqueerreedreefreeferreekreelrefereerefugeerupeesateenscreescreechscreenseeseedseekseemseenseepseerseesawseethesheensheepsheersheetskeetsleeksleepsleetsleevesneersneezespeechspeedspleenspreesqueegeesqueezesteedsteelsteepsteeplesteersteeragestreetsucceedsweepsweetteeteemteenteethteethetepeetheethreetoffeetoupeetreetureentweedtweettweezerveejayveerveneerweeweedweekweenweepweevilwheewheedlewheelwheezeyippee
aggressiveaggravateaggrievebaggybeggingbiggerbiggiebraggartboggedboggledbuggedcloggeddraggedeggflaggedgigglegagglegoggleshagglejuggleluggedleggymoxiemuggymuggednaggedpeggedraggedsluggedtoggletaggedtriggerwaggednogginflogged
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Some words with two Vs are velvet, vivid, vivacious, Volvo, and Vesuvius.
Some words that have two Vs are:aversivebivalveconservativeconvivialconvulsivederivativedivisiveevasiveevocativeevolveinnovativeinvasiveinventiveinvolveoverachieveroverdriveoverprotectiveovervaluepervasivereviverevolverevolversavvysubversivesurvivalsurvivorvalvevaudevillevegetativevelvetvindictivevivaciousvividvoiceovervotive
Some words start with Z and have double S: zaniness. zestfulness. zealousness. zipless. zoneless. zestless.
Some words with FF:BaffleBluffBuffBuffaloBuffedBufferBuffetCaffCaffeineCliffCoffeeCoffinCuffCuffedCuffsDifferDoffDuffDuffelFluffFluffsFluffyGaffGriffGruffGuffHuffHuffedJiffLuffMiffMuffMuffinMuffleMufflerMufflesOffOffalOffedOfferOffsPuffPufferPuffinPuffsQuaffQuiffRaffRaffleRiffRiffedRiffleRuffRuffleScoffScruffScuffSniffSnuffSpiffStaffStiffStuffSufferSuffixTiffToffToffeeWaffleWhiff