'Pier' definitions:

Definition of 'pier'

From: WordNet
noun
A platform built out from the shore into the water and supported by piles; provides access to ships and boats [syn: pier, wharf, wharfage, dock]
noun
(architecture) a vertical supporting structure (as a portion of wall between two doors or windows)
noun
A support for two adjacent bridge spans

Definition of 'Pier'

From: GCIDE
  • Pier \Pier\, n. [OE. pere, OF. piere a stone, F. pierre, fr. L. petra, Gr. ?. Cf. Petrify.]
  • 1. (Arch.) (a) Any detached mass of masonry, whether insulated or supporting one side of an arch or lintel, as of a bridge; the piece of wall between two openings. (b) Any additional or auxiliary mass of masonry used to stiffen a wall. See Buttress. [1913 Webster]
  • 2. A projecting wharf or landing place. [1913 Webster]
  • Abutment pier, the pier of a bridge next the shore; a pier which by its strength and stability resists the thrust of an arch.
  • Pier glass, a mirror, of high and narrow shape, to be put up between windows.
  • Pier table, a table made to stand between windows. [1913 Webster]