What is the word for number 4 in greek alphabet?

The Greek alphabet doesn't have a specific word for the number 4.

Here's why:

* Greek letters represent sounds, not numbers: The Greek alphabet is used to write the Greek language. Each letter represents a sound.

* Numbers have their own system: The ancient Greeks used a system of numbers based on their alphabet. The number 4 is represented by the letter δ (delta).

So, while the letter delta (δ) is used to write the number 4, it doesn't have a specific word for it in the Greek alphabet.