Freight option (4)
I believe the answer is:
rail
(Other definitions for rail that I've seen before include "A bird; bar to hang on" , "Length of track" , "Track for wheels" , "transport system" , "Protest strongly (at)" .)
I believe the answer is:
rail
(Other definitions for rail that I've seen before include "A bird; bar to hang on" , "Length of track" , "Track for wheels" , "transport system" , "Protest strongly (at)" .)