| Answer | Crossword Clue |
|---|---|
| intracity | between cities |
| interurban | between cities |
| BOUNDARY | Line between two cities |
| SEAPLANES | Transportation between some Alaskan cities |
| intercity | Existing or traveling between cities |
| interrail | to travel between cities by train |
| interrails | INTERRAIL, to travel between cities by train |
| interrailed | INTERRAIL, to travel between cities by train |
| interrailer | INTERRAIL, to travel between cities by train |
| interrailing | INTERRAIL, to travel between cities by train |
