Smoking room and Smoking carriage

Smoking room noun - Room in a hotel or club set apart for smokers.

Smoking carriage and smoking room are semantically related. In some cases you can use "Smoking carriage" instead a noun phrase "Smoking room".

Smoking carriage noun - A passenger car for passengers who wish to smoke.

Smoking room and smoking carriage are semantically related. You can use "Smoking room" instead a noun phrase "Smoking carriage".