greekletter
nounUK /ˈɡriːk ˈlɛtə/
US /ˈɡriːk ˈlɛtər/
A Greek letter is a special letter from the Greek alphabet, like alpha or beta.
The teacher wrote a Greek letter on the board to show us the start of the alphabet.
OTHER MEANINGS
2. A letter used in math or science to stand for a number or idea.
In math class, we used the Greek letter pi to talk about circles.
3. A letter from the writing system of Greece.
She learned to write her name using a Greek letter.
4. A symbol from the Greek alphabet used in fraternity or sorority names.
The club's name started with a Greek letter.