When talking about inflation there are two main types. I usually call them treasury and CPI inflation, but I don’t necessarily know if those are widely used terms. By treasury inflation I refer to the total supply of money, like the inverse of federal interest rates basically. By CPI inflation I mean the change of the consumer price index over time. Both are useful, but depending on the context one may be more useful than the other.
Those things are called the “supply of money” and a “price index”…
And yeah, changes on the first one isn’t often called “inflation”. But if you clearly define what you are talking about, people will understand.