| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | pilot light | US | Commonly used in older gas appliances to keep a constant flame for ignition | 1 |
| 2 | pilot light | US | Pilot lights are commonly found in gas appliances such as water heaters and furnaces, and are considered a standard safety feature in households. | 1 |
| 3 | pilot light | USA | Common in older gas appliances such as water heaters and stoves as a small, continuously burning flame to ignite the main burner when needed. | 1 |