from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The supporting part of a structure; the foundation.
  • noun The earth bank or bed supporting railroad tracks.

from The Century Dictionary.

  • noun A substruction; any under-structure; a foundation.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Arch.) Same as substruction.
  • noun An under structure; a foundation; groundwork.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The supporting part of a structure (either physical or organizational; the foundation); underbuilding.
  • noun The earth or gravel that railway sleepers are embedded in.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun lowest support of a structure
  • noun the basic structure or features of a system or organization


Sorry, no etymologies found.



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