邮票 (yóu piào) is a noun meaning 'postage stamp' — the small adhesive paper label affixed to mail to indicate that postage has been paid. The character 邮 (yóu) means 'mail' or 'postal', and 票 (piào) means 'ticket' or 'certificate'; together, they literally convey 'postal ticket'. Historically, stamps were issued by national postal services and often feature cultural, historical, or natural themes — making them collectible as well as functional.

While digital communication has reduced everyday use, 邮票 remains essential for sending physical letters, postcards, and packages within China and internationally. They are sold at post offices, convenience stores, and online, and come in denominations matching different weight and destination requirements. Collecting stamps (集邮, jí yóu) is a popular hobby in China, with rare or commemorative issues sometimes holding significant value.