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 List of 12-letter words containing ••••••Click to add an eighth letter
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 There are 3 twelve-letter words containing 2H, I, N, P, T and Z| DIPHTHONGIZE | • diphthongize v. (Transitive, phonetics) To change to a diphthong, as by inserting or removing a vowel. • diphthongize v. (Intransitive, phonetics) To become a diphthong.
 • DIPHTHONGIZE v. to make into a diphthong, also DIPHTHONGISE.
 |  | NAPHTHALIZED | • naphthalized v. Simple past tense and past participle of naphthalize. • NAPHTHALIZE v. to treat with naphtha, also NAPHTHALISE.
 |  | NAPHTHALIZES | • naphthalizes v. Third-person singular simple present indicative form of naphthalize. • NAPHTHALIZE v. to treat with naphtha, also NAPHTHALISE.
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 Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.Definitions are short excerpt from the WikWik.org and 1Word.ws.
 
 See this list for:English Wiktionary: 5 wordsScrabble in French: no wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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