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n.
A row or rank, especially one of two or more rows placed one above, or higher than, another; as, a tier of seats in a theater.
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1.
A row or rank, especially one of two or more rows placed one above, or higher than, another; as, a tier of seats in a theater.
Phrases & compounds
Tiers of a cable —
the ranges of fakes, or windings, of a cable, laid one within another when coiled.