underpinˈ transitive verb

1. To support by building underneath, or to prop up (also figurative)
2. To corroborate

underpinnˈing noun

• single bond
• single bonds
• single-breasted
• single-cell protein
• single-cell proteins
• single-chamber
• single combat
• single cream
• single creams
• single-cross
• single-crosses
• single currency
• single-cut
• singled
• single-decker
• single-deckers
• single-digit
• singledom
• single-end
• single-ended
• single-ends
• single-entries
• stamping machine
• stamping machines
• stamping mill