| 1 | Delta is the fourth letter of the Greek alphabet. | |
| 2 | L It is the Greek letter for L. | |
| 3 | I'm helped with the alphabet by the fact I speak Russian. | |
| 4 | Such symbols as we use in maths are Greek letters. | |
| 5 | In two thousand five, Greek letters had to be used for the first time to name storms in the Atlantic. |