RAILS

noun

1. A horizontal bar extending between supports and used for support or as a barrier; a railing.
2. The metal bar that makes the track for a railroad.
3. A railroad; a railway, as a means of transportation.

verb

1. To travel by railway.
2. To enclose with rails or a railing.
3. To range in a line.

noun

1. Any of several birds in the family Rallidae.