A wagon used to carry hay. / An open cart filled with hay used for tourist hay rides.

A heavy, freight-hauling cart with a canvas cover drawn by mules, oxen or horses. It should not be confused with the lighter prairie schooner that was used extensively during the westward expansion of the United States in the 18th and 19th centuries https://en.wikipedia.org/wiki/Conestoga_wagon.

plural of smoke wagon

(obsolete) A vehicle providing transport to and from a railway station.

(US) A table on wheels used to take food or drinks from the kitchen to the dining-room. / (US, film, slang) An audio mixing console on wheels.

present participle of circle the wagons

(US, dated) A light flatbed farm wagon or ranch wagon that has two or more seats and is usually drawn by one or sometimes two horses.

(US, slang, archaic) A handgun, especially a revolver.

A police van for transporting prisoners.

(slang) A vehicle used to collect sewage from septic tanks etc. Also called a cesspool emptier.