1. obsolescence falling into disuse or becoming out of date
  2. officiousness aggressiveness as evidenced by intruding
  3. efficiency skillfulness in avoiding wasted time and effort
  4. officialese the style of writing characteristic of some government officials: formal and obscure
  5. visual sense the ability to see; the visual faculty
  6. off-licence a store that sells alcoholic beverages for consumption elsewhere
  7. socialism a political theory advocating state ownership of industry
  8. officialise make official
  9. official immunity personal immunity accorded to a public official from liability to anyone injured by actions that are the consequence of exerting official authority
  10. social science the branch of science that studies society and the relationships of individual within a society
  11. officialize make official
  12. opalescence the visual property of something having a milky brightness and a play of colors from the surface
  13. physical science the physical properties, phenomena, and laws of something
  14. voicelessness a disorder of the vocal organs that results in the loss of voice
  15. efficient being effective without wasting time, effort, or expense
  16. incalescence the property of being warming
  17. geophysical science geology that uses physical principles to study properties of the earth
  18. adolescence the period between the beginning of puberty and adulthood
  19. official emissary a member of a legation
  20. officer's mess a mess for the exclusive use of officers