Examples of words with double consonants:
Mississippi
strength, stretchmarks, hitchhiker, rhyme, thymus
21
Here is list of words with a double 'V'chivviedchivvieschivvychivvyingcivviescivvydivvieddivviesdivvydivvyingflivverflivversnavviesnavvyrevvedrevvingsavviedsavviersavviessavviestsavvysavvyingskivviedskivviesskivvyskivvyingSome of these words are rarely used, or are only used in limited circumstances.
allappleannualaccommodateaccessorybubblebarrettebafflebitterbutterbabblebiggerballetboostcattlecarrotcommitteecherrychesschillchubbycorrectcoffeedinnerdifferdaggerdolldulldillduffelerrorflossfoodfloodfestoonflabbyfuzzfrazzleguessglitterguzzlegallongrammarguppygiggleharasshitterhobbyhiddenhuffyhuggedhallucinationhammerhappyhurriedinnerjazzkettlekillerladderloosemuddymuzzlemaddermufflemuttmuggernibblenuttynecessaryoccupyoozeotterpuddlepaddleprettypebblepuzzlepizazzpizzapennantparrotpuffprissyquitterrattleriddlereferredrooferstoolsimmersinnerslipperstoffeeuttervacuumwhopperworrywinneryellowzoozipperMississippiinnappleopossumcommaletterfootballdrummer
questionably
Any letter in the alphabet except the letters a, e, i, o, and u
addsballbellbillbullbassbossbuffbuttcallcellcuffcussduffdolldelldilldullfallfellfillfullgullguffgaffgallgillhallhillhullhuffinnskilllulllasslesslossmassmuffmiffmessmissmosspasspuffsellsilltalltelltilltolltiffwallwellwillyell
To list a few: Dodder. Domesticate. Dominate. Donate. Doom. Double-cross. Doubt. Douse. Doze.
There are no words that have double-x in them.
A list of kind words
A list of words that end with ES:admiresbootiesclothesduesglasseshadesseriesyes