A,Ω, (It's All Greek to Me) and Metal: April 7, 2025

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Across
  1. 3. We're Back in Black
  2. 8. Flying mammal
  3. 9. What you think this puzzle is, maybe?
  4. 11. Has a trunk
  5. 13. May be a mispronounciation of the Greek letter with a value of 600 and is also a drink meaning "tea"
  6. 14. They're the most metallic of all of the "Big 4"
  7. 17. Large marsupial
  8. 20. Name on the shirt I was wearing on Monday
Down
  1. 1. In the Greek alphabet, it has a value of 800
  2. 2. Hugely renowned metal band that's named after the disciple who betrayed Jesus
  3. 4. They were the first Greek life organization created at William & Mary in 1776
  4. 5. Britney Spears song you might need a gas mask for
  5. 6. Don't let it build up in your house
  6. 7. Likes to chase mice
  7. 10. "Προδότης" in English
  8. 12. Alpha Kappa Alpha
  9. 13. In Greek, it has a value of 600
  10. 15. It has a value of 300 in Greek
  11. 16. Man's best friend
  12. 18. Greek for "highest point"
  13. 19. This metal band shares the same name of the disease that was spread in letters shortly after 9/11