American Dictionary

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Definition tier in American English

tier noun

[countable] noun
/tɪr/
1

one of several rows or layers of something with each one at a different height

Example

a wedding cake with three tiers

Synonyms and related words
2

one of several levels in an organization or system

Example

two tiers of management

Example

the bottom tier of society

Synonyms and related words
Definition tier in American English