omni-

American  

1. a combining form meaning “all,” used in the formation of compound words.

   omnifarious; omnipotence; omniscient.

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omni- British  

combining form

1. all or everywhere

   omnipresent

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Usage

What does omni- mean? Omni- is a combining form used like a prefix meaning “all.” It is often used in scientific and technical terms. Omni- comes from Latin omnis, meaning “all.” The Greek translation of omnis is pâs “all, each, every,” which is the source of the combining forms pan- and panto-, as in panorama and pantomime. To learn more, check out our Words That Use articles for the combining forms pan-, pant-, and panto-.

Etymology

Origin of omni-

< Latin, combining form of omnis