1. Guaira Falls a great waterfall on the border between Brazil and Paraguay
  2. superfluous more than is needed, desired, or required
  3. frivolous not serious in content, attitude, or behavior
  4. Niagara Falls waterfall in Canada is the Horseshoe Falls
  5. Caryophyllaceae large family of herbs or subshrubs
  6. Chordeiles a genus of Caprimulgidae
  7. carefulness the quality of being careful and painstaking
  8. Caryophyllales corresponds approximately to the older group Centrospermae
  9. Garfield 20th President of the United States
  10. Raffles British colonial administrator who founded Singapore
  11. privilege a special advantage or benefit not enjoyed by all
  12. quarrelsome given to arguing
  13. dwarf hulsea similar to but smaller than alpine hulsea
  14. quarrel an angry dispute
  15. aerophilous depending on free oxygen or air
  16. marvelous extraordinarily good or great
  17. quartile 1 of 4 parts into which an ordered distribution is divided
  18. gravitas formality, dignity, or seriousness
  19. true-false offering a series of statements each of which is to be judged as true or false
  20. sacrifice the act of killing in order to appease a deity