pil·lar (pĭl'ər)
n.

1. 1. A slender, freestanding, vertical support; a column.
   2. Such a structure or one similar to it used for decoration.
2. One who occupies a central or responsible position: a pillar of the state.

tr.v., -lared, -lar·ing, -lars.
To support or decorate with pillars or a pillar.

idiom:

from pillar to post

1. From one place to another; hither and thither.

[Middle English, from Old French pilier, from Medieval Latin pīlāre, from Latin pīla.]

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The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.

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