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Across
  1. 3. – Facility where runways meet terminals
  2. 6. – Act of leaving, especially from a scheduled point of origin
  3. 7. – Something given to a common fund, cause, or effort
  4. 10. – Warm‑blooded vertebrate with feathers and a beak
  5. 11. – Room equipped for washing or personal hygiene
  6. 12. – Group of people linked by shared locality, interests, or identity
  7. 13. – Optical instrument used to record images
  8. 15. – Small baked sweet; also, a website’s data file on your device
  9. 17. – Natural or acquired capacity to perform a task
  10. 18. – Discipline concerned with quantity, structure, space, and change (abbr.)
  11. 19. – Art form organized through pitch and rhythm
  12. 20. – Store specializing in food and household staples
Down
  1. 1. – Long‑standing institution or the prevailing power structure
  2. 2. – Study of past events, particularly in human affairs
  3. 4. – Business function focused on promoting and selling products or services
  4. 5. – Tool or gadget designed for a specific function
  5. 8. – Official responsible for detailed examination or review
  6. 9. – Safeguarding someone or something from harm or damage
  7. 11. – Annual commemoration of one’s date of birth
  8. 13. – Nation with its own government and territory
  9. 14. – Prevailing emotional state of a person or setting
  10. 16. – Machine that processes data according to programmed instructions
  11. 17. – Guidance or recommendations offered about future action