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There are 4 five-letter words beginning with OCTA

OCTAD• octad n. A group of eight things.
• octad n. (Historical) hundred million = myriad myriad; 100,000,000 = 108.
• OCTAD n. a group of eight.
OCTAL• octal n. (Arithmetic, computing, uncountable) The number system that uses the eight digits 0, 1, 2, 3, 4, 5, 6, 7.
• octal n. (Arithmetic, computing, countable) A digit or value in the octal number system.
• octal adj. (Arithmetic, computing) Concerning numbers expressed in octal or mathematical calculations performed using octal.
OCTAN• octan adj. Occurring every eight days.
• octan n. A fever that recurs every eight days.
• OCTAN n. a fever recurring every eight day.
OCTAS• octas n. Plural of octa.
• OCTA n. a unit of cloud-cover, one-eighth sky, also OKTA.

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: 4 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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