- a small gummed label issued by postal authorities that can be affixed to an envelope, postcard, or package as evidence that postal charges have been paid.
- of very small area or size: a postage-stamp bikini.
- a printed paper label with a gummed back for attaching to mail as an official indication that the required postage has been paid
- a mark directly printed or embossed on an envelope, postcard, etc, serving the same function
