Unit 3 vocab

• Estimate (v)


  An approximation of a number based on reasonable assumptions
• Preserve (v)


  To save; to keep from harm; to protect
• Regions (n)


  areas in a country or the world
• Disappear (v)


  to no longer exist or be visible
• Developing (v)


  making into something bigger or more complete
• Traditional (adj)


  customary or normal in a certain culture
• Still (adv)


  up to and including the present
• Factor (n)


  an issue in, a cause of
• Actual (adj)


  real
• Custom (n)


  The frequent repetition of an act, to the extent that it becomes characteristic of the group of people performing the act.