"Disappearing money" can refer to several different concepts or scenarios. Here are a few possibilities:

Money can "disappear" in terms of losing its purchasing power due to inflation. If the general price level of goods and services increases over time, the value of money decreases, and people can buy less with the same amount of currency.

Money can also disappear when individuals or businesses experience financial losses. This can happen through investments that decline in value, business ventures that fail, or through theft, fraud, or other forms of financial mismanagement.

In some cases, money can be considered "disappeared" when it becomes unclaimed or abandoned. This can happen with bank accounts, forgotten assets, or uncashed checks, for example. In many jurisdictions, unclaimed funds are held by the government until the rightful owner comes forward.

In the digital age, money can be susceptible to theft through various cybercrime activities such as hacking, phishing, or identity theft. When unauthorized individuals gain access to someone's financial accounts or information, money can be stolen or disappear from those accounts.

It's important to note that the specific context in which you're referring to "disappearing money" would provide more clarity on the exact meaning or scenario you have in mind.