1. (n.) One who, or that which, ties.

2. (n.) A child's apron covering the upper part of the body, and tied with tape or cord; a pinafore.

3. (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.

Indian file array articulation band bank bed bedding belt buzz category catena catenation chain chain reaction chaining concatenation connection consecution continuum couche course cycle deck descent drone echelon endless belt endless round file filiation floor gallery gamut gradation grade group grouping hum layer league ledge level line lineage measures monotone nexus order overlayer overstory pendulum periodicity pigeonhole plenum powder train progression queue range rank recurrence reticulation rotation round routine row run scale seam sequence series shelf single file spectrum stage step story stratum string substratum succession superstratum swath thickness thread topsoil train underlayer understory understratum windrow zone