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Across
  1. 4. A song or poem of lamentation
  2. 13. The blooming or flowering of something
  3. 14. A period of rest or leave from work
  4. 16. The study and practice of map-making
  5. 17. A monument honoring those who died in war
  6. 19. A change or variation, often unexpected
  7. 20. A person who dislikes humankind
Down
  1. 1. To emit light without heat
  2. 2. Existing before a war, especially the Civil War
  3. 3. A historical pharmacist or druggist
  4. 5. A bright red pigment
  5. 6. Done in secret or concealed
  6. 7. Glowing without high temperature
  7. 8. Tolerance to poison through gradual exposure
  8. 9. A violent whirlpool or chaotic situation
  9. 10. A plant that turns toward the sun
  10. 11. A model of excellence or perfection
  11. 12. Complex and maze-like
  12. 15. An agreement to stop fighting
  13. 18. A difficult or precarious situation