An expression of remorse or regret for having said or done something that harmed another: an instance of apologizing (saying that one is sorry).
A formal justification, defence.
Anything provided as a substitute; a makeshift.
An expression of favorable acceptance and encouragement; a compliment that also condones.
Something mailed by a seller to a collector to match their stated interests; the collector can approve of or return the item.
An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing, or event meets requirements.