- tier
- tier [tıə US tır] n[Date: 1400-1500; : Old French; Origin: tire 'order, rank'; ATTIRE]1.) one of several levels or layers that rise up one above the other▪ The lower tier has 10,000 seats.in tiers▪ Terraces of olive trees rose in tiers.two-tiered/three-tiered etc(=having two, three etc levels or layers)▪ a three-tiered wedding cake2.) one of several levels in an organization or systemtier of▪ the most senior tier of managementthe first/second etc tier▪ The second tier of the programme is in-house training.▪ a two-tier system of government
Dictionary of contemporary English. 2013.