What does "tier" mean?

1. (a level or rank) one of several levels in an organization or system. 2. (seating or rows) a row of seats where each row is higher than the one in front. 3. (to arrange in layers) to organize things into different levels or layers. 4. (data management) to move computer data between different types of storage to save money or space.

How do you use "tier"?

Often used in the passive voice or as a past participle adjective.

tier

n. · v.

US //ˈtiɹ// tier

1 a level or rank (n.)
B2 Upper Intermediate

one of several levels in an organization or system.

a rank, grade, or stratum within a hierarchical structure.

Example

The wedding cake had three tiers, each decorated with white flowers.

Example

The government introduced a three-tier system of restrictions to manage the regional health crisis more effectively.
- level
- layer
- rank
- stratum
2 seating or rows (n.)
B2 Upper Intermediate Theatre

a row of seats where each row is higher than the one in front.

a row or range of structures, especially seating, arranged at a higher or lower level than another.

Example

We sat in the upper tier of the stadium to get a better view of the pitch.

Example

The ancient amphitheatre featured multiple tiers of stone seating designed to provide perfect acoustics for every spectator.

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3 to arrange in layers (v.)
C1 Advanced Formal

to organize things into different levels or layers.

to arrange or stack items in overlapping or sequential layers.

Example

The gardener decided to tier the plants so the smaller ones were in front.

Example

The landscape architect chose to tier the garden beds along the slope to prevent soil erosion during heavy rains.

Usage

Often used in the passive voice or as a past participle adjective.
- layer
- stack
- stratify
4 data management (v.)
C1 Advanced Technical Computing

to move computer data between different types of storage to save money or space.

to move data between different storage media as an optimization strategy based on access frequency.

Example

The system will automatically tier your files to the cloud if you don't use them often.

Example

By implementing a policy to tier cold data to cheaper archival storage, the company significantly reduced its monthly infrastructure costs.
- optimize
- migrate

Etymology 1

From tie + -er.

Etymology 2

From Middle French tier, from Old French tire (“rank, sequence, order, kind”), probably from tirer (“to draw, draw out”). Alternatively, from a Germanic source related to Middle English tir (“honour, glory, power, rule”), Old English tīr (“glory, honour, fame”), Old Norse tírr (“glory, honour, renown”).