sort by Rank | Alpha
| Possible Meanings | Rank |
| Bucks County Symphony Orchestra | ** |
| Biological Chemistry Student Organization | ** |
| Boulder County Sheriffs Office | ** |
| Brevard County Sheriffs Office | ** |
| British Central Scientific Office | ** |
| Business Change Support Officer | ** |
| Bexar County Sheriffs Office | ** |
| business customer sales organization | ** |
| Bernalillo County Sheriffs Office | ** |
| British Columbia Society of Orthodontists | ** |
| Boone County Sheriff Official | ** |
| building codes standards organizations | ** |
| Basic Child Support Obligation | * |
| Belize Central Statistical Office | * |
| Botswana Central Statistics Office | * |
| Black Current Seed Oil | * |