1. affixed firmly attached
  2. overcast filled or abounding with clouds
  3. overhasty done with very great haste and without due deliberation
  4. overside over the side of a boat
  5. overstay stay too long
  6. outcaste a person belonging to no caste
  7. Everest a mountain in the central Himalayas on the border of Tibet and Nepal; the highest mountain peak in the world (29,028 feet high)
  8. outcast a person who is rejected (from society or home)
  9. Avesta a collection of Zoroastrian texts gathered during the 4th or 6th centuries
  10. offset a compensating equivalent
  11. vexed troubled persistently especially with petty annoyances
  12. convexity the property possessed by a convex shape
  13. unfixed not firmly placed or set or fastened
  14. off-guard not prepared or vigilant
  15. off guard not prepared or vigilant
  16. officiate perform a ceremony or religious ritual
  17. oversight an unintentional omission from failure to notice something
  18. waveguide a hollow metal conductor that provides a path to guide microwaves; used in radar
  19. Ophiuchus a large constellation in the equatorial region between Hercules and Scorpius
  20. roughcast a coarse plaster for the surface of external walls

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