Collection 5

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Across
  1. 4. the fast growth of something
  2. 6. when something gradually gets thinner
  3. 11. to buy things for your own use or ownership
  4. 12. something that is hard to describe because it cannot be perceived by the senses
  5. 14. indifference or the lack of interest or concern
  6. 15. to buy
  7. 17. to make an urgent appeal to others
  8. 18. the act of watching something
Down
  1. 1. very steep
  2. 2. to form an incorrect opinion about something
  3. 3. a way of thinking or feeling about something or someone
  4. 5. the application of science and engineering as part of a commercial or industrial undertaking
  5. 7. an explanation or theory for something that can be tested for validity
  6. 8. the object toward which your work and planning is directed; a purpose
  7. 9. relating to a city or town
  8. 10. required
  9. 13. overabundance or excess
  10. 16. accepting challenges and taking initiative