A second signature added to a document to affirm the validity of the signature of the first person.
The response to a sign or signal.
To sign on the opposite side of (a document).
To add a second signature to a document, affirming the validity of the signature of another person.
To have or express an unfavorable opinion.
To condemn; to consider wrong or inappropriate; used with of.
She disapproves of rap music because of its sometimes aggressive lyrics.
To refuse to approve; reject.