Letter E

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Across
  1. 1. Natural process of landform decay
  2. 2. Derived from the Greek letter epsilon
  3. 3. Name in the NATO phonetic alphabet
  4. 5. Poet famous for "The Raven"
  5. 8. Most commonly used letter in English
  6. 11. Style of leaning letters, beginning with this letter
  7. 12. Fundamental biological process abbreviated as E
  8. 13. A concept symbolized in mathematical equations
  9. 14. Chemical element with atomic number 68
  10. 18. Often found at the end of words but not pronounced
  11. 20. Tower in Paris named after its engineer
  12. 21. Symbol in a famous physics equation
  13. 22. The final or concluding point of something
  14. 23. Mathematical power notation abbreviated as E
  15. 25. Its ASCII value ends with the digit 9
  16. 26. Mathematical value approximately 2.718
Down
  1. 1. Planet whose name starts with this letter
  2. 3. A branch of mathematics involving growth and decay
  3. 4. Originates from an ancient hieroglyph of a human figure
  4. 6. A soundwave phenomenon critical in sonar and acoustics
  5. 7. A form of digital communication
  6. 9. Continent that begins with this letter
  7. 10. Cardinal direction starting with this letter
  8. 14. Its position in the English alphabet
  9. 15. Represented as a single dot (.) in Morse code
  10. 16. Subatomic particle with a negative charge
  11. 17. Number of horizontal lines in the letter E
  12. 19. A boundary or border of something
  13. 21. Inventor associated with light bulbs and phonographs
  14. 24. A system involving trade, money, and resources