(of a railway) having only a single pair of lines, so that trains can travel in only one direction at a time (of a road) only wide enough for one vehicle
WordReference Random House Unabridged Dictionary of American English © 2025
sin•gle-track
(sing′gəl trak′),USA pronunciation adj.
- Rail Transport(of a railroad or section of a railroad's route) having but one set of tracks, so that trains going in opposite directions must be scheduled to meet only at points where there are sidings.
- having a narrow scope;
one-track:He has a single-track mind.
- 1825–35, American.
Collins Concise English Dictionary © HarperCollins Publishers::
'single-track' also found in these entries (note: many are not synonyms or translations):