Noun

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