- Philately - The collection and study of postage stamps and mail.
- Philatelist - A person who collects and studies stamps and covers.
- Essay - A trial design, or model, of a proposed postage stamp created for review by postal authorities.
- Proof - A trial printing of a stamp used to inspect for defects, see which ink color looks best for that particular stamp, or present to dignitaries and government officials.
- Stamp - Official evidence of payment for postal services, designed to be fixed to a piece of mail.
- Pane - unit of stamps cut from a larger press sheet to sell to the public or assemble into a booklet.
- Cover - An envelope, card, or wrapper that has been sent through the mail.
- Postmark - A mark placed on or near a stamp to show the place and date of mailing.
- Cancellation - A mark that obliterates a stamp so that it can’t be used again.