underpin

[ uhn-der-pin ]

verb (used with object)

, un·der·pinned, un·der·pin·ning.

1. to prop up or support from below; strengthen, as by reinforcing a foundation.
2. to replace or strengthen the foundation of (a building or the like).
3. to furnish a foundation for; corroborate:

   The author's conclusions are underpinned by references to experimental findings.

underpin

/ ˌʌndəˈpɪn /

verb

1. to support from beneath, esp by a prop, while avoiding damaging or weakening the superstructure

   to underpin a wall

2. to give corroboration, strength, or support to

Word History and Origins

Origin of underpin¹

First recorded in 1515–25; under- + pin

Example Sentences

The post-WWII system of international alliances, underpinned by NATO, is now in grave peril of being unraveled.

From Salon

Coral reefs also underpin the livelihoods of one billion people including by supporting tourism or fishing, according to the World Economic Forum.

From BBC

BBC News NI has seen an extract from an executive document which underpinned Monday's budget reallocation, known as a monitoring round.

From BBC

Bitcoin now underpins a two trillion-dollar cryptocurrency industry - but the first recorded transaction using it was the purchase of pizza.

From BBC

The UK Foreign Office said that "growth is the core mission of this government and will underpin our relationships in Nigeria, South Africa and beyond".

From BBC