oct-

¹ American  

1. variant of octa- or octo- before a vowel.

   octal.

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oct. ² American  

abbreviation

1. octavo.

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Oct. ³ American  

abbreviation

1. October.

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Oct ¹ British  

abbreviation

1. October

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oct- ² British  

combining form

1. (used before a vowel) a variant of octo-

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Usage

What does oct- mean? Oct- is a combining form used like a prefix meaning “eight.” It is used in a great many scientific and technical terms.Octo- comes from the Greek oktṓ, meaning “eight.” The Latin equivalent, which is almost identical in spelling and pronunciation, is octō.What are variants of oct-?Oct- is a variant of octa- or octo-, which loses its -a- or -o- when combined with words or word elements beginning with vowels.Want to know more? Check out our Words That Use entries for both octa- and octo-.

Example Sentences

When part of its moraine slid into the lake a little after 10 p.m. on the night of Oct.

From The Wall Street Journal

He was Middle East bureau chief when Hamas attacked Israel on Oct.

From The Wall Street Journal

The former Laker and onetime husband of Khloé Kardashian is telling his story for “The Death and Life of Lamar Odom,” the newest episode of Netflix’s documentary series “Untold,” along with Kardashian, former coach Phil Jackson and others who were around during his Oct.

From Los Angeles Times

Bitcoin was trading at $67,690 Tuesday afternoon, down 46.4% from its all-time high of $126,272.76, reached on Oct.

From MarketWatch

Dion will perform twice a week — on Wednesdays and Saturdays — from Sept. 12 to Oct.

From Los Angeles Times