| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| This term for a region of sediment deposited at a river's mouth shares its name with a Greek letter | delta | $400 | DJ | SCIENCE WORDS | 2023-01-11 | #8783 | |
| This 4th letter of the Greek alphabet is used to describe a high-speed aircraft wing type | delta | $200 | J | SCIENCE | 1996-10-03 | #2779 |