/ Dictionary / Index P postage stamp: Meaning and Definition of Find definitions for: post'age stamp" Pronunciation: [key] 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. Also called post•age-stamp Pronunciation: (pō'stij-stamp"), [key] — adj. Informal. of very small area or size: a postage-stamp bikini. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. postage meter postal Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language