tier meaning and definition

TIER noun

Definition of tier (noun)

1. a relative position or degree of value in a graded group
   • "lumber of the highest grade"
   • synonyms: grade, level
2. any one of two or more competitors who tie one another
3. a worker who ties something
   • synonyms: tier up
4. something that is used for tying
   • "the sail is fastened to the yard with tiers"
5. one of two or more layers one atop another
   • "tier upon tier of huge casks"; "a three-tier wedding cake"