put the seal on (something)

put the seal on (something)

To definitively confirm, finalize, or conclude (something). Her victory tonight puts the seal on the runner's remarkable unbeaten career. Many are hopeful that the meeting will finally put the seal on a peace agreement between the two warring nations.
See also: on, put, seal
Farlex Dictionary of Idioms.

put (or set) the seal on

put the finishing touch to.
See also: on, put, seal
Farlex Partner Idioms Dictionary
See also:
  • put the seal on
  • set the seal on (something)
  • set the seal on something
  • be certain
  • be certain that (something will happen or is the case)
  • the real McCoy
  • real McCoy
  • real McCoy, the
  • have (one) bang to rights
  • have someone bang to rights