An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements.
Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item.
An expression of favorable acceptance and encouragement; a compliment that also condones.
A formal declaration of agreement to a treaty etc.
The act or process of ratifying, or the state of being ratified.