Found 5 abbreviations in 2 groups
| Omn.: Meaning | Category |
| Omn. | Omnes, Omnibus ("All", "to all") | ecclesiastical |
Abbreviations similar to omn
- OM - Outer marker
- OOMA - Optimized Organizational Maintenance Activity
- OEM - Original Equipment Manufacturer
- OME - Osaka Mercantile Exchange
- OMW - On My Way, Oh My Word
- ON - Ontario (postal symbol)
- Onna - Oniong, Nnung Ndem, and Awa, a Local Government Area in Nigeria
- ONH - Historically, as the Irish-language name for the original Irish Republican Army ("Old IRA")
- ONI - (U.S.) Office of Naval Intelligence
- OWN - Oprah Winfrey Network
- OMA - Ocular motor apraxia
- O&M - Operations and Maintenance
- OIM - Offshore Installation Manager
- OMO - Mostar International Airport
