oner - oxfi
- operating aircraft
- operating automobile
- operating car
- operating charges
- operating expenses of carrier
- operating expenses of public utility
- operating loss
- operating motor vehicle
- operating motor vehicle while intoxicated
- operating receivership
- operatio
- operatio murorum
- operation of law
- operation of railroad
- operative
- operative property
- operative trust
- operative words
- operator for hire
- operator of automobile
- operator's license
- operis novi nuntiatio
- ophthalmologist
- ophthalmology
- ophthalmoscope
- opiate
- Opinio quae favet testamento est tenenda
- opinion
- opinion evidence
- opinion of administrative agency
- opinion of appellate court
- opinion of court
- opinion of the attorney general
- opium
- Opium Act
- opium joint
- oportet
- Oportet quod certa res deducatur in donationem
- Oportet quod certa res deducatur in judicium
- Oportet quod certa sit res quae venditur