ratify

As a noun approval

is an expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing or event meets requirements.

As a verb ratify is

to give formal consent to; make officially valid.

In transitive terms the difference between ratify and sign

is that ratify is to give formal consent to; make officially valid while sign is to furnish (a road etc.) with signs.

As a noun sign is

a visible indication.

In transitive terms the difference between ratify and rectify

is that ratify is to give formal consent to; make officially valid while rectify is to correct or amend something.

As verbs the difference between testify and ratify

is that testify is to make a declaration, or give evidence, under oath while ratify is to give formal consent to; make officially valid.

As a verb ratify

is to give formal consent to; make officially valid.

As a noun consignation is

the act of consigning.

As a verb ratify

is to give formal consent to; make officially valid.

As an adjective nonratifying is

that does not ratify (a treaty, etc).