on-s - outg
- orientation
- origin
- original
- original capital
- original classification authority
- original copy
- original culture
- original draft
- original evidence
- original opinion
- original outlays
- original project
- original resident
- original session
- original source
- original text
- original value
- original volume
- originality
- originally
- originate
- originator
- Orthodox
- Orthodox Church
- Orthodox clergy
- orthodox view
- Orthodoxy
- OSCE
- ostracize
- ostrich policy
- ostrich-like policy
- OTH
- other body
- other ranks
- our correspondent has the details
- our economic troubles continue to resist solution
- our efforts have not been wasted
- our envoy was accredited to their new government
- our information does not accord with his report
- our troops advanced on the next town
