Earlier quoted context omitted.
> Doctors and lawyers are not making $50k a year For the most part, no. > $50k is not even the average annual income in this country That depends which average you are referring to. It's well above the median personal income (around $35K)—the median being usually the useful average for income statistics, but a little bit less than the mean personal income. (The most common “average income” number, though, is neither…
Generally, when one says average, they mean average. I used it deliberately because of the implicit comparison to be made between it and the median, and because of where it compares to the arbitrary $50k figure grandparent chose to swing the conversation around.
“Average” is an ambiguous term. The mode, median, and the various (harmonic, geometric, arithmetic) means are all averages.
In income statistics specifically, the usual average referenced is the median of the appropriate measure.
In context-neutral informal conversation, the arithmetic mean is the most common average.
If you want to be clear, its a good idea to avoid “average” and use the specific term for a measure.