Homonym: Ε (Epsilon)
The letter "Ε" is the fifth letter of the Greek alphabet. In uppercase, it is written as "Ε," and in lowercase, it appears as "ε." It represents the vowel sound similar to the English "e" in "met."
In the Greek numeral system, "Ε" has a value of 5. It is also used in various scientific and mathematical contexts, such as representing the base of natural logarithms, denoted as e. The letter has historical significance in ancient Greek literature and is often found in words related to philosophy and science.