Meaning of Underpinnings
Unknown / অজানা / अज्ञात
a system of supports beneath a wall or the like.
Often, underpinnings. a foundation or basis: to uncover the emotional underpinnings of an illness.
underpinnings, Informal. underwear, especially women's underwear. the legs.
any supporting structure or system
a structure of masonry, concrete, etc, placed beneath a wall to provide support