The system of trains that runs underground in large cities:
This question is new; it was not asked in the 1965–70 survey.
| SUBWAY | 13 |
| METRO | 2 |
| TRAIN | 1 |
| UNDERGROUND | 1 |
DARE Data Summary by Dictionary of American Regional English (DARE) is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.