1. natural depression a sunken or depressed geological formation
  2. natural resin a plant exudate
  3. neurotic depression a term used for any state of depression that is not psychotic
  4. trial impression (printing) an impression made to check for errors
  5. natural process a process existing in or produced by nature
  6. unipolar depression a major depressive episode that occurs without the manic phase that occurs in the classic form of bipolar disorder
  7. retarded depression a state of clinical depression in which the individual is lethargic and slow to initiate action
  8. natural selection a process in which organisms evolve to adapt to environment
  9. Great Depression the economic crisis beginning with the stock market crash in 1929 and continuing through the 1930s
  10. transgression the violation of a law or a duty or moral principle
  11. literate person a person who can read and write
  12. material possession property or belongings that are tangible
  13. clinical depression a state of depression and anhedonia so severe as to require clinical intervention
  14. retired person someone who has retired from active working
  15. third person pronouns and verbs that are used to refer to something other than the speaker or addressee of the language in which they occur
  16. depression a sunken or lowered geological formation
  17. natural resource resources (actual and potential) supplied by nature
  18. natural spring a natural flow of ground water
  19. indirect expression an indirect way of expressing something
  20. natural resources resources (actual and potential) supplied by nature