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There are 4 fourteen-letter words containing N, 2O, 2P and 3R

NONPROPRIETARYnonproprietary adj. Lacking proprietary value; not private or privileged information.
nonproprietary n. A drug that is not proprietary.
non-proprietary adj. Alternative form of nonproprietary.
OVERPROPORTIONoverproportion v. To give something excessive proportions.
overproportion n. Excessive proportion.
OVERPROPORTION v. to make disproportionately large.
PROTOPORPHYRINprotoporphyrin n. (Biochemistry) Any porphyrin that lacks a central metal ion.
PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.
RHOMBENPORPHYRRHOMBENPORPHYR n. an intermediate, moderately fine-grained igneous rock with feldspar phenocrysts rhombic in section, also RHOMBENPORPHYRY, RHOMBPORPHYRY.

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: 19 words
  • Scrabble in French: 10 words
  • Scrabble in Spanish: 7 words
  • Scrabble in Italian: 39 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 7 words


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