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.

put (or set) the seal on

put the finishing touch to.

See also: on, put, seal

Farlex Partner Idioms Dictionary © Farlex 2017

See also:

put the seal on (something)
set the seal on (something)
set the seal on something
be certain
be certain that (something will happen or is the case)
real McCoy
real McCoy, the
the real McCoy
you can't be a little bit pregnant
you can't be half pregnant

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