Underpin meaning

ŭndər-pĭn
Underpin is defined as to support, particularly from below.

An example of underpin is for beams to hold up a tree house.

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To support from below, as with props, girders, or masonry.
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To give support or substance to.

Assumptions that underpinned their claims.

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To support or strengthen from beneath, as with props.
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To support or strengthen in any way; corroborate, substantiate, etc.
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To support from below with props or masonry.

You should underpin the mine roof to prevent further collapse.

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(figuratively) To give support to; to corroborate.

Public confidence in politicians must underpin our democracy.

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Origin of underpin

  • under- +"Ž pin.

    From Wiktionary