tier

IPA: tˈɪr

One who ties (knots, etc).
Something that ties.
(archaic) A child's apron.
A row or range, especially one at a higher or lower level than another.
A rank or grade; a stratum.
(Australia) A (typically forested) range of hills or mountains, especially in South Australia or Tasmania; a mountain.

(transitive) To arrange in layers.
(transitive) To cascade in an overlapping sequence.
(transitive, computing) To move (data) from one storage medium to another as an optimization, based on how frequently it is accessed.

Examples of "tier" in Sentences

These guys operated on what we call a tier one level.
Because this lower tier is what Medicare will become.
The second tier is always there; the issue is: what the first tier should look like.
Store sizes will be upwards of 15,000-25,000 square feet even in tier II towns like Pune.
We've got a lot of franchisee interest on our business from what I call tier-1 franchisees.
A year later, high-end home buyers were thought to have endless, deep pockets, further insulating the top-tier from the cratering economy.
There are a few different tiers of security at our school, but most people (teachers and students) have what I refer to as tier one, which is where everything remotely useful is blocked.
I work in tier 1 (tier 2-ish tasks many times) HelpDesk at a media company and I'm constantly copying/pasting things in Active Directory, MS Exchange Management Console, and other systems.