1. efficient being effective without wasting time, effort, or expense
  2. effacement the act of withdrawing, eliminating, or making inconspicuous
  3. officiant a clergyman who officiates at a religious ceremony or service
  4. aficionado a serious devotee of some activity, genre, or performer
  5. incipient only partly in existence; imperfectly formed
  6. efficiency skillfulness in avoiding wasted time and effort
  7. office-bearer the person who holds an office
  8. office block a building containing offices where work is done
  9. office boy a young man who is employed to do odd jobs in a business office
  10. officiousness aggressiveness as evidenced by intruding
  11. officiate perform a ceremony or religious ritual
  12. efficiently in a manner that wastes no time or effort
  13. office building a building containing offices where work is done
  14. icebound locked in by ice
  15. expend use up or consume fully
  16. official immunity personal immunity accorded to a public official from liability to anyone injured by actions that are the consequence of exerting official authority
  17. overspend spend more than available of (a budget)
  18. officiating the act of umpiring
  19. office furniture furniture intended for use in an office
  20. twice-pinnate a pinnate leaf having two pairs of leaflets