Build upon

//bɪldʌpɑn// verb

Definitions

Verb
  1. 1
    Synonym of build on.

    "However, while reusing the existing alignment was considered, it was ultimately discounted for several reasons - not least because some sections have been built upon, particularly approaching Cambridge from the south, while the section through Bedford now forms part of a country park."

  2. 2
    use as a basis for theories and claims wordnet

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