In philately, a mint stamp is one which is unused, has never been mounted and has the original gum, (if issued with gum).[1][2] The term applies equally to postage stamps and revenue stamps.
In practice[inconsistent], the term is used within philately to refer to any stamp that appears to be unused with gum. It also includes those without gum but only when they have been issued without gum.
To avoid confusion the various states of mint can be distinguished in the abbreviations stated under "Variations".