"Master" vs. "Owner's Suite"

Real Estate PC

If you haven't noticed, you seldom see a home advertised with a "Master Suite" anymore; these days, it's an "Owner's Suite."

And it's not just Realtors.

A couple years ago, the repairman working on our furnace referred to our main floor thermostat as the "master," and the satellite thermostats on the upper and lower levels as "slaves."

That's not the terminology I heard the repairman use yesterday.

Hopefully, it's still OK to "master" the art of something (cooking, painting, etc.); refer to the original as a "master" recording, etc.