Definitions of tier:

  • noun:   one of two or more layers one atop another
    Example: "Tier upon tier of huge casks"
  • noun:   something that is used for tying
    Example: "The sail is fastened to the yard with tiers"
  • noun:   a worker who ties something
  • noun:   any one of two or more competitors who tie one another
  • noun:   a relative position or degree of value in a graded group
  • name:  A surname (very rare: popularity rank in the U.S.: #41849)