Definition of let something into in English:

let something into

phrasal verb

  • Set something back into (the surface to which it is fixed), so that it does not project.

    ‘the basin is partly let into the wall’
    • ‘Metal plates, hinges, and other pieces of hardware look best if let into the surface of the wood.’
    • ‘Two stone plaques are let into the wall on either side of the entrance.’