| 1. | light produced by the combustion of illuminating gas. |
| 2. | a gas burner or gas jet for producing this kind of light. |
| 3. | gaslit (def. 2). |
| Main Entry: | gaslight |
| Part of Speech: | v |
| Definition: | to manipulate someone into questioning their own sanity; to subtly drive someone crazy |
| Etymology: | 1956 |
| Usage: | slang; gaslighting, n |