What is another word for tank engine?
Pronunciation: [tˈaŋk ˈɛnd͡ʒɪn] (IPA) 
Tank engine is a term that refers to a particular type of steam locomotive in which the water tank and fuel bunker are incorporated in the locomotive's frame as opposed to being separate components. When referring to this type of locomotive, we often use phrases such as "saddle tank engine" or "side tank engine" to describe the location of the water tank. Other synonyms for tank engine include tank locomotive, tank loco, and tank train. Some vintage train enthusiasts might even use the term "doodlebug" to refer to a small self-propelled engine with a tank-like design. Regardless of the term used, tank engines remain a iconic and beloved part of railway history.
