There is though. To measure the general size of a country of economy, we can either use constant prices or current prices. Current prices just measure the value of commodities in its current value whereas constant prices account for inflation. Nominal GDP uses current prices as base for its calculation whereas Real GDP uses constant prices. For countries with normal inflation rates, current prices and constant prices are not so different, so Nominal GDP figure would not be far from the Real GDP figure.
With that being said, you can actually increase Nominal GDP by printing money. Money printing increase money supply in the interbank trade, and when money is cheap inflation follows. Inflation in current prices would result in a higher nominal GDP but when inflation is accounted for, there might be zero growth in real productivity.