oct-

¹

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

   octal.

oct.

²

abbreviation

1. octavo.

Oct.

³

abbreviation

1. October.

Oct

¹

abbreviation

1. October

oct-

²

combining form

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

Example Sentences

The impact on the real economy will begin this month when two million federal workers and 1.3 million active-duty military personnel start missing paychecks for their work since Oct.

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The 10-year yield was 4.13% Wednesday, just slightly below the level it was at when the government shut down Oct.

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The stock set a record closing high of $189.11 on Wednesday after a 2.2% jump; its intraday high was $191.05 on Oct.

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When Bryan teased the same track again on Oct.

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The research, published on Oct.

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When To Use

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-.