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 List of 12-letter words containing •••••Click to add a seventh letter
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 There are 3 twelve-letter words containing A, D, H, I, P and Q| QUADRAPHONIC | • quadraphonic adj. (Of a sound system) Employing four independent channels or speakers. • QUADRAPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRIPHONIC, QUADROPHONIC.
 |  | QUADRIPHONIC | • quadriphonic adj. Alternative form of quadraphonic. • QUADRIPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRAPHONIC, QUADROPHONIC.
 |  | QUADROPHONIC | • quadrophonic adj. Alternative spelling of quadraphonic. • QUADROPHONIC adj. of, relating to, or using four channels for the transmission, recording, or reproduction of sound, also QUADRAPHONIC, QUADRIPHONIC.
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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: 7 wordsScrabble in French: 8 wordsScrabble in Spanish: no wordScrabble in Italian: 1 wordScrabble in German: no wordScrabble in Romanian: no word
 
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