The phrase "tier status" refers to a person's or organization's position or rank within a specific system or hierarchy. It indicates their level in terms of importance, privilege, or standing compared to others. Full definition
You needed just 20,000 elite qualifying miles to achieve top tier status with them, and they'd give you 1,000 elite qualifying miles just for signing up. (onemileatatime.boardingarea.com)
Platinum challenges are very rare, so you'll likely need top - tier status with another chain to even be considered (and even then that may not be enough). (thepointsguy.com)
I explained a week ago how I nearly stumbled into a situation where I have a good chance of obtaining top - tier status in a hotel program for the first time. (travelcodex.com)