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There are 6 five-letter words beginning with OCT

OCTADoctad n. A group of eight things.
octad n. (Historical) hundred million = myriad myriad; 100,000,000 = 108.
OCTAD n. a group of eight.
OCTALoctal 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.
OCTANoctan adj. Occurring every eight days.
octan n. A fever that recurs every eight days.
OCTAN n. a fever recurring every eight day.
OCTASoctas n. Plural of octa.
OCTA n. a unit of cloud-cover, one-eighth sky, also OKTA.
OCTEToctet n. A group or set of eight of something.
octet n. (Music) A group of eight musicians performing together.
octet n. (Music) A composition for such a group of musicians.
OCTYLoctyl n. (Organic chemistry) Any of very many isomeric univalent hydrocarbon radicals, C8H17, formally derived…
OCTYL n. a type of hydrocarbon radical.

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: 9 words
  • Scrabble in French: 3 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 3 words


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