omni-

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

   omnifarious; omnipotence; omniscient.

omni-

combining form

1. all or everywhere

   omnipresent

Word History and Origins

Origin of omni-¹

< Latin, combining form of omnis

Word History and Origins

Origin of omni-¹

from Latin omnis all

Example Sentences

The conference was taking place in New Haven’s Omni Hotel, a few blocks from the Yale campus where I first encountered urban history as an undergrad two decades ago.

From Slate

Nick Kantor, the group’s program director, summed up this big-tent vibe in a closing message that referred to the four keynotes: “An anti-racist scholar, a Republican governor, a legendary environmentalist, and a housing economist walk into the Omni … sounds like the opening of a joke, but this was YIMBYtown 2025!”

From Slate

No one listening that night, at the Omni in Atlanta, would have mistaken what they heard for a concession speech.

From Los Angeles Times

Opera makers of all sorts and from all continents have checked into the Omni hotel downtown.

From Los Angeles Times

Other notable premieres at the festival include Michael Mohan’s “Immaculate,” an intense horror story set at an Italian convent starring Sydney Sweeney; Bernardo Britto’s “Omni Loop,” a time-loop tale featuring Mary Louise Parker and Ayo Edebiri; Sara Zandieh’s comedy “Doin’ It,” with Lily Singh; and E.L.

From Los Angeles Times

When To Use

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-.