1. overnighter a guest who stays overnight
  2. overheated heated beyond a safe or desirable point
  3. overwinter spend the winter
  4. overdraw draw more money from than is available
  5. overture orchestral music at the beginning of an opera or musical
  6. overpower defeat by superior force
  7. hard water water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap
  8. over-the-top far more than usual or expected
  9. overstated represented as greater than is true or reasonable
  10. red water a disease of cattle; characterized by hematuria
  11. overmaster overcome by superior force
  12. Javelle water an aqueous solution of sodium hypochlorite
  13. fresh water water that is not salty
  14. overtire tire excessively
  15. overstate enlarge beyond bounds or the truth
  16. overloaded loaded past capacity
  17. overdose dose too heavily
  18. Javel water an aqueous solution of sodium hypochlorite
  19. first water the highest quality gems
  20. overrate make too high an estimate of