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List of 13-letter words containing

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There are 16 thirteen-letter words containing A, O, P, T, X and Y

APPROXIMATELYapproximately adv. Imprecise but close to in quantity or amount.
APPROXIMATE adv. close together.
ARCHAEOPTERYXarchaeopteryx n. Alternative spelling of archeopteryx.
Archaeopteryx prop.n. A taxonomic genus within the family Archaeopterygidae – known from fossils and widely accepted as the…
archæopteryx n. Rare spelling of archeopteryx.
ASPHYXIATIONSasphyxiations n. Plural of asphyxiation.
ASPHYXIATION n. the act of asphyxiation.
EXCEPTIONABLYexceptionably adv. In an exceptionable manner.
EXCEPTIONABLE adv. being likely to cause objection.
EXCEPTIONALLYexceptionally adv. To an unusual, remarkable or exceptional degree.
EXCEPTIONAL adv. by way of an exception.
EXPEDITIONARYexpeditionary adj. Of or pertaining to an expedition.
expeditionary adj. (Military) Intended for military operations abroad.
expeditionary n. (Chiefly in the plural) One who goes on expeditions, especially one who is a member of an expeditionary…
EXPLANATORILYexplanatorily adv. With regard to explanation, or explanatory power.
EXPLANATORY adv. serving to explain, also EXPLANATIVE.
EXPLORATIVELYexploratively adv. In an explorative way or fashion.
EXPLORATIVE adv. serving to explore.
EXPONENTIALLYexponentially adv. (Mathematics, sciences) In an exponential manner.
exponentially adv. (Proscribed) rapidly, greatly.
EXPONENTIAL adv. of or relating to an exponent.
EXPORTABILITYexportability n. The property of being exportable.
EXPORTABILITY n. the state of being exportable.
EXPOSTULATORYexpostulatory adj. Of, characterized by, or exhibiting expostulation.
EXPOSTULATORY adj. relating to expostulation, also EXPOSTULATIVE.
EXTEMPORARILYextemporarily adv. In an extemporary manner.
EXTEMPORARY adv. unpremeditated; esp. of prayer, discourse, composition, etc., also EXTEMPORANEOUS, EXTEMPORE.
EXTRAPOLATORYextrapolatory adj. Serving to extrapolate.
EXTRAPOLATORY adj. of or like an extrapolation.
HYPOXANTHINEShypoxanthines n. Plural of hypoxanthine.
HYPOXANTHINE n. a purine base found in plant and animal tissues that yields xanthine on oxidation.
PHYCOXANTHINSPHYCOXANTHIN n. a yellow pigment found in diatoms, brown seaweeds etc.
PROPAROXYTONEproparoxytone adj. (Linguistics, of a word) Having the stress or accent on the antepenultimate syllable.
proparoxytone n. (Linguistics) A proparoxytone word.
PROPAROXYTONE n. in ancient Greek, a word having the acute accent on the third last syllable.

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.

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See this list for:

  • English Wiktionary: 97 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 8 words
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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