From Longman Dictionary of Contemporary Englishpostage stampˈpostage stamp noun [countable] formalTCM a stamp
Examples from the Corpus
postage stamp• In its upper right corner, where it belonged, a postage stamp had been etched in the yellow gold.• Improbable because compared to the plump, leather-lined Bentley, a barn door has the frontal area of a postage stamp.• Finally, from the 40p would be deducted the cost of the telephone call or postage stamp to make the complaint. 