verb (used with object), un·der·pinned, un·der·pin·ning.
Examples from the Web for underpinned
He has underpinned his future program by winning from NASA a 20-year lease on the legendary launch pad 39A at Cape Canaveral.Tycoons in Space: One in Orbit and One Still Grounded|Clive Irving|October 5, 2014|DAILY BEAST
The problem here is that this exchange is underpinned by some fundamental misunderstandings.
The 1990s stock market bubble had just burst along with the collapse of telecom spending that had underpinned it.
After all, the rigid dogmas that once underpinned the conflict have long since been binned.
Such instruments can be put in place now but must be underpinned and reinforced by a global agreement on climate change.
During the latter part of the time its aisle walls were underpinned.Bell's Cathedrals: The Cathedral Church of Rochester|G. H. Palmer
The foundation of the south side of the Choir and the south-eastern Transept have been underpinned and thoroughly repaired.Ely Cathedral|Anonymous
Religious laws made for their own government, which underpinned their social life, were rarely meddled with.The Jews of Barnow|Karl Emil Franzos