| Acronym | Definition |
|---|
| ONHS➣Olathe North High School (Olathe, KS) |
| ONHS➣Oshkosh North High School (Wisconsin) |
| ONHS➣Olive Natural Heritage Society (West Shokan, NY) |
| ONHS➣Occupational Noise and Hearing Survey (NIOSH) |
| ONHS➣Oxford Natural Heritage Study (Canada) |