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