Christian AidˌChristian ˈAid 
a Christian charity organization that provides money, equipment, advice etc in order to help poorer countries develop their farming and industry
a Christian charity organization that provides money, equipment, advice etc in order to help poorer countries develop their farming and industry- Office of Management and Budget
- Office Of Public Sector Information
- office party
- officer
- official
- Official Birthday
- officialdom
- officialese
- officially
- official receiver
- Official Secrets Act
- officiate
- officious
- officiously
- officiousness
- offing
- off-key
- off-kilter
- off-licence
- off limits
- offline
- offload
- off-message
- off-peak
- off-piste