obso - on-s
- obsolescence rate of equipment
- obsolete concept
- obsolete criterion
- obsolete customs
- obsolete dogma
- obsolete equipment
- obsolete political regimes
- obsolete social system
- obstacle
- obstacle to a new economic order
- obstacle to better relations
- obstacle to economic growth
- obstacle to greater foreign investment
- obstacle to peace
- obstruct
- obstruction
- obstructionism
- obstructionist
- obstructionist policy
- obstructionist stand
- obstructive
- obtain
- obtainable data
- OCAS
- occasion
- occidental
- occidental civilization
- occult sciences
- occupant
- occupation
- occupation army
- occupation authorities
- occupation force
- occupation forces
- occupation of foreign territories
- occupation regime
- occupation rights
- occupation troops
- occupation zone
- occupational
