sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Outdoor Adventure Network | **** |
| Observatorio Astronómico Nacional | **** |
| Observatorio Astronomico Nacional | **** |
| outdoor adventures network | **** |
| Optical Access Networking | *** |
| Oregon Association of Nurseries | *** |
| Oceanie Afrique Noire | *** |
| Oklahoma Autism Network | *** |
| olfactory anterior nucleus | ** |
| orthodromically activated neurons | ** |
| oxytocin associated neurophysin | ** |
| Optical Access Networks | ** |
| Oral-antral-nasal fistula | ** |
| Orthopedic Associates of Naperville | ** |
| overlay access network | ** |
| Oklahoma Arthritis Network | ** |
| Oregon Asthma Network | ** |
| Ontario AIDS Network | ** |
| Ohio Advocate Network | ** |
| Ohio Afterschool Network | ** |
| Oficina Administrativa Nacional | * |
| Oregon Access Network | * |
| Owner Applied Numbers | * |
| Obesity Action Network | * |
| Ohio Ambulance Network | * |
| Oulun Akateemiset Naiset | * |
| Observatorio Astronomico Naciona | * |