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WordReference Random House Learner's Dictionary of American English © 2024un•der•pin•ning /ˈʌndɚˌpɪnɪŋ/USA pronunciation n. [countable]- a system of supports beneath a wall or the like.
- Often, underpinnings. [plural] a foundation or basis:to strengthen the underpinnings of a friendship.
WordReference Random House Unabridged Dictionary of American English © 2024un•der•pin•ning (un′dər pin′ing),USA pronunciation n. - a system of supports beneath a wall or the like.
- Often, underpinnings. a foundation or basis:to uncover the emotional underpinnings of an illness.
- Informal Terms underpinnings:
- Clothingunderwear, esp. women's underwear.
- the legs.
- under + pin + -ing1 1480–90
Collins Concise English Dictionary © HarperCollins Publishers:: underpinning /ˈʌndəˌpɪnɪŋ/ n - a structure of masonry, concrete, etc, placed beneath a wall to provide support
un•der•pin (un′dər pin′),USA pronunciation v.t., -pinned, -pin•ning. - to prop up or support from below;
strengthen, as by reinforcing a foundation. - to replace or strengthen the foundation of (a building or the like).
- to furnish a foundation for;
corroborate:The author's conclusions are underpinned by references to experimental findings.
Collins Concise English Dictionary © HarperCollins Publishers:: underpin /ˌʌndəˈpɪn/ vb ( -pins, -pinning, -pinned)(transitive)- to support from beneath, esp by a prop, while avoiding damaging or weakening the superstructure: to underpin a wall
- to give corroboration, strength, or support to
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