underpinPronunciation: /ʌndəˈpɪn/Translate underpin | into Italian Definition of underpin verb (underpins, underpinning, underpinned) [with object] 1support (a building or other structure) from below by laying a solid foundation below ground level or by substituting stronger for weaker materials. 2support, justify, or form the basis for:the theme of honour underpinning the two booksunderpin in other Oxford dictionaries Definition of underpin in the US English dictionary
