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

Bitcoin is down 20% since the beginning of January and has fallen 45% from it’s all-time high of $126,272.76 on Oct.

From Barron's

The number one name, from Oct.

From MarketWatch

The stock had already tumbled 22.1% from its Oct.

From MarketWatch

Shares soared to a record closing high of $100.10 on Oct.

From Barron's

There was little appetite in Washington for a prolonged closure after last fall’s record-breaking government shutdown, which stretched from Oct.

From MarketWatch