Underpinning

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Dictionary Meaning and Definition on 'Underpinning'

Underpinning Meaning and Definition from WordNet (r) 2.0
    underpinning See underpin
Underpinning Meaning and Definition from WordNet (r) 2.0
    underpin v
  1. support from beneath
  2. support with evidence or authority or make more certain or confirm; "The stories and claims were born out by the evidence" [syn: corroborate, bear out, support] [also: underpinning, underpinned]
Underpinning Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Underpinning \Un"der*pin`ning\, n.
  1. The act of one who underpins; the act of supporting by stones, masonry, or the like.
  2. (Arch.) (a) That by which a building is underpinned; the material and construction used for support, introduced beneath a wall already constructed. (b) The foundation, esp. of a frame house. [Local, U. S.]
Underpinning Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Underpin \Un`der*pin"\, v. t. [imp. & p. p. Underpinned; p. pr. & vb. n. Underpinning.]
  1. To lay stones, masonry, etc., under, as the sills of a building, on which it is to rest.
  2. To support by some solid foundation; to place something underneath for support.
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Wikipedia Meaning and Definition on 'Underpinning'


In construction, underpinning is the process of strengthening and stabilizing the foundation of an existing building or other structure. Underpinning may be necessary for a variety of reasons:

Underpinning is accomplished by extending the foundation in depth or in breadth so it either rests on a more supportive soil stratum or distributes its load across a greater area. Use of micropiles and jet grouting are common methods in underpinning. An alternative to underpinning is the strengthening of the soil by the introduction of a grout. All of these processes are generally expensive and elaborate.

Underpinning may be necessary where P class (problem) soils in certain areas of the site are encountered.

Through semantic change the word underpinning has become to encompass all abstract concepts that serve as a foundation.

[See more about Underpinning at Dictionary 3.0 Encyclopedia]

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Underpinning Sample Sentences in News


  • Economy in U.S. Expands 4.2%, More Than Previously Forecast
    The improvement has carried over into the second half withcompanies such as General Electric Co. seeing more orders forequipment and a strengthening job market underpinning consumerspending, which accounts for about 70 percent of the economy. Read more on this news related to 'Underpinning'
  • Gold prices flat to higher in Asia with Ukraine underpinning support
    Investing.com Investing.com Gold prices in Asia Friday held flat to higher as investors moved cautiously with tensions in the Ukraine underpinning support. On the Comex division of the New York Mercantile Exchange, gold futures for December delivery traded at Read more on this news related to 'Underpinning'
  • Detroit Art Deal Brokered by Biased Mediators: Syncora
    An $800 million settlement underpinning Detroit’s plan to exit from its record municipal bankruptcy was brokered by biased mediators and should be thrown out, bond insurer Syncora Guarantee Inc. told a federal judge. Read more on this news related to 'Underpinning'

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