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There are 72 eighteen-letter words containing 2H and 3N

acenaphthoquinonesAmerican␣night␣heronaminophenanthrenesanilinonaphthaleneanilinophthalazineanthropophaginiansbathophenantrolineBononian␣phosphorusChâlons-en-Champagnechanging␣the␣channeldehydrosphinganinediaminonaphthalenediazaphenanthrenesdimethylxanthenonedinitronaphthalenediphenylhydantoinsfuronaphthoquinonehamana-hamana-hamanahang␣out␣one's␣shinglehappy␣hunting␣groundhexaphenylbenzeneshidden␣in␣plain␣sighthigh␣dependency␣unithighest-functioning highest␣functioninghigh-finned␣dragonethypersynchronizingion␣channelopathiesJapanese␣night␣heronLesch-Nyhan␣syndromeMalayan␣night␣heronsmethanochondroitinmethyllanthioninesmonophthongisationmonophthongizationMorton␣and␣HanthorpenaphthalenediaminenaphthodianthronesneoechinorhynchidsNew␣Guinea␣Highlandsnitrophenanthrenesnonachlorobiphenylnonanthropomorphicnonencephalopathicnon-Hodgkin␣lymphomanonphosphorylatingnonphosphorylationnorthern␣maidenhairnorthern␣snakeheadsnoughtwithstanding nought-withstanding nought␣withstandingone␣hundred␣thousandphenanthraquinonesphenophosphazininephenoxaphosphininephenylethanolaminephenylphenalenonesphospholipomannansphosphonopentanoicrobin-run-in-the-hedgerunning␣for␣the␣hillsshoots␣one␣in␣the␣sinksmashing␣and␣dashingsneezing␣on␣the␣truthSpanish␣Netherlandsstranger␣in␣the␣nightthen␣and␣in␣that␣eventthink␣with␣one's␣penisUhthoff's␣phenomenonWashington␣hawthornwhistling␣in␣the␣wind

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 29 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: no word
  • German Wiktionary: 386 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 32 words

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