| Clue | Source | Date |
|---|---|---|
| Chopper, in military slang | Wall Street Journal | 13 Aug 2025 |
| Chopper, to a grunt | Wall Street Journal | 19 Apr 2025 |
| Military chopper | Newsday | 23 Mar 2025 |
| Military chopper | Newsday | 24 Apr 2015 |
| Military chopper | ||
| Whirlybird | ||
| Chopper, to GIs | ||
| Chopper (for short) | ||
| Chopper (for short) | ||
| Chopper, for short | ||
| Whirlybird, for short | ||
| Whirlybird | ||
| Copter | ||
| Marsh: Prefix | ||
| Nail: Comb. form. |