List of 13-letter words beginning with

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There are 33 thirteen-letter words beginning with IS

ISMATICALNESS ISOAGGLUTININ ISOALLOXAZINE ISOANTIBODIES ISOBAROMETRIC ISOCARBOXAZID ISOCHEIMENALS ISOCHROMOSOME ISOCHRONISING ISOCHRONIZING ISOCHRONOUSLY ISODIMORPHISM ISODIMORPHOUS ISOELECTRONIC ISOGEOTHERMAL ISOGEOTHERMIC ISOLABILITIES ISOLATIONISMS ISOLATIONISTS ISOMERISATION ISOMERIZATION ISOMETRICALLY ISOPERIMETERS ISOPRENALINES ISOPROTERENOL ISOSMOTICALLY ISOSPONDYLOUS ISOSTATICALLY ISOSTHENURIAS ISOTENISCOPES ISOTONICITIES ISOTRETINOINS ISOTROPICALLY

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.

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See this list for:

English Wiktionary: 226 words
Scrabble in French: 26 words
Scrabble in Spanish: 11 words
Scrabble in Italian: 132 words
Scrabble in German: no word
Scrabble in Romanian: 76 words

Recommended websites

Visit WikWik.org - to search for words and build lists from Wiktionary's words.
www.BestWordList.com to create personalized word lists.
www.BestWordClub.com to play duplicate online scrabble.
1word.ws to play with words, anagrams, suffixes, prefixes, etc.
Ortograf.ws to look for words.

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