tier
1. tier \'ti(*)r\ n [MF tire rank - more at ATTIRE] : a row, rank, or layer of articles; esp : one of two or more rows arranged one above another 2. tier vt : to place or arrange in tiers to rise in tiers
1. tier \'ti(*)r\ n [MF tire rank - more at ATTIRE] : a row, rank, or layer of articles; esp : one of two or more rows arranged one above another 2. tier vt : to place or arrange in tiers to rise in tiers