What is the meaning of interlocking?

noun

• Contact by fitting together.
  • usage: "the engagement of the clutch"; "the meshing of gears"
  • synonyms: engagement, mesh, meshing
• The act of interlocking or meshing.
  • usage: "an interlocking of arms by the police held the crowd in check"
  • synonyms: mesh, meshing, interlock

verb

• Coordinate in such a way that all parts work together effectively.
  • synonyms: interlock, mesh
• Hold in a locking position.
  • usage: "He locked his hands around her neck"
  • synonyms: lock, interlock, interlace
• Become engaged or intermeshed with one another.
  • usage: "They were locked in embrace"
  • synonyms: interlock, lock

adjective

• Linked or locked closely together as by dovetailing.
  • synonyms: interlacing, interlinking, interwoven