tier
//tɪər//
Noun
tierSingular
tiersPlural
1
A row or level of a structure, typically one of a series placed one above another.
The wedding cake had three tiers.
2
A level or grade within a hierarchy of status or quality.
The company offers three tiers of membership.
Verb
1
To arrange or organize in tiers or levels.
The company decided to tier its pricing based on customer usage.