Relating to the collection, sorting and delivery of mail.

In terms of, or by means of, the postal service.

The address (of a person or business) to which mail is delivered, as distinct from the actual street address.

(intransitive, chiefly US, informal) To become aggressive and erratic, especially due to stress; specifically, to carry out a shooting spree at a workplace environment; also (more generally) to become very angry; to lose one's temper.

A forged stamp intended to defraud the post office, rather than defrauding stamp collectors.

(philately) Of a postage stamp, cancelled in the normal course of postal business, rather than to devalue it for sale to collectors.

An organisation charged by the governing body of a country or region with the provision of postal services within that region.

A sequence of letters and/or numbers added to a postal address to aid the sorting and delivery of post/mail.

A ballot in which votes are sent by postal mail.

A vote made on an official form which is then sent through the post/mail.