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English definition of “building block”

building block

noun uk   us  
[C] a piece of wood or plastic used by children to build things withToys and dolls building blocks [plural] the basic things that are put together to make something exist: Science and the arts are the building blocks of a good education.Important and essential thingsInformation and messages
(Definition of building block from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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