Hyper-inflation is a term used to describe an economic situation where the cost of goods and services rise at a rapid and uncontrollable rate. In addition to hyper-inflation, there are several other synonyms that can be used to describe this phenomenon. One such term is runaway inflation, which refers to the rapid increase of prices occurring within a short period of time. Another alternative term is galloping inflation, which is used to describe a situation where the inflation rate is extremely high, but may not necessarily be uncontrollable. A final synonym for hyper-inflation is the term wheelbarrow inflation, which relates to the story of German citizens having to use wheelbarrows to carry their money to buy basic necessities during a severe inflation period.