That's the way you do it
Let me tell ya them guys ain't dumb
This video nicely distinguishes currency from money.
Currency is said to have the following attributes: medium of exchange, unit of account, portable, durable, divisible, fungible (interchangeable). Money is all of those things plus a store of value over long periods of time.
A US dollar is currency but not money, because the USD loses value over time due to inflation. An ounce of gold, on the other hand, is money, because it holds value over long periods of time.
One thing that I would revise in this video is the position that money is a tool for trading time. This is not precise enough. Money is a tool for trading productive time. Money reflects production. Before coins and currency, people traded their production directly in what today we call a barter system. Bread was money. Chopped wood was money. .
Because currency can be created at a whim, it does not reflect actual production. Instead, currency is a claim on someone else's labor. Someone who possesses one of these claims can call away production made by someone else without having to produce something and engaging in trade.
That currency enables people to take production from others without trading their own production is the reason why all currencies fail over time.
position in gold