Definition of teardown in US English:

teardown

noun

US
informal
  • 1An act of completely dismantling something.

    ‘an engine teardown’
    1. 1.1 A building bought solely for the purpose of demolishing.
      ‘a $2 million teardown’
    2. 1.2 An act of demolishing a building, usually to build a new one on the same site.
      ‘every teardown has an impact on the look and feel of a community’
      • ‘Based on Greenwich demolition applications submitted since July 1, Mr. Marr projects 35 percent fewer residential teardowns will happen in his city this year.’
      • ‘Larger building systems will also require significant setup and teardown and may require modifications to existing building systems.’

Pronunciation

teardown

/ˈterdoun/