tier

definition: one of two or more layers one atop another
example: tier upon tier of huge casks
speech part: noun
synonyms:
definition: something that is used for tying
example: the sail is fastened to the yard with tiers
speech part: noun
synonyms:
definition: a worker who ties something
example:
speech part: noun
synonyms: tier up
definition: any one of two or more competitors who tie one another
example:
speech part: noun
synonyms:
definition: a relative position or degree of value in a graded group
example:
speech part: noun
synonyms: level

tier is explained and pronounced

How tier is being used?