- - Principal rail route
- - Principal artery
- - Principal route of a railroad
- - Principal highway
- - Mum queuing to take drug intravenously
- - A thousand queuing to catch a fast train here?
- - route of river mostly northwards in us state
- - Take 9 intravenously
- - Route zero comes up through American state
- - Email inn travelling by Irish Rail from Dublin to Belfast
- - Inject into a vein
- - Chief part of a rail network
- - Email inn travelling by Irish Rail from Dublin to Galway
- - It's not the road less traveled
- - Suburban Philadelphia area
- - Posh area of Phila.
- - Posh Philadelphia suburban area
- - Part of a railroad.
- - Track for the Century.
- - Chief artery
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