Meaning

• A horizontal bar extending between supports and used for support or as a barrier; a railing.

• The metal bar that makes the track for a railroad.

• A railroad; a railway, as a means of transportation.

  "We travelled to the seaside by rail."

• A horizontal piece of wood that serves to separate sections of a door or window.

• One of the lengthwise edges of a surfboard.

• A vertical section on one side of a web page.

  "We're experimenting with ads in the right-hand rail."

• A large line (portion or serving of a powdery illegal drug).

Meaning

• To travel by railway.

• To enclose with rails or a railing.

• To range in a line.

• To criticize severely.