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 There are 2 twelve-letter words containing SISER| HYPOTHESISER | • hypothesiser n. Alternative form of hypothesizer. • HYPOTHESISER n. one who hypothesises, also HYPOTHESIZER. |  | SYNTHESISERS | • synthesisers n. Plural of synthesiser. • SYNTHESISER n. a person who, or thing which, synthesizes, also SYNTHESIZER. |  
 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: 2 words
 - Scrabble in French: 1 word
 - Scrabble in Spanish: no word
 - Scrabble in Italian: no word
 - Scrabble in German: no word
 - Scrabble in Romanian: 153 words
 
 
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