张贴 (zhāng tiē) is a compound verb meaning 'to post'—specifically, to attach a notice, sign, or advertisement in a public or visible place. The first character 张 (zhāng) originally means 'to stretch open' or 'to unfold', suggesting the act of spreading something out for display; the second character 贴 (tiē) means 'to stick' or 'to paste', emphasizing physical adhesion. Together, they convey the full action of preparing and affixing written material—like posters, announcements, or warnings—to walls, doors, bulletin boards, or other surfaces.

This verb is commonly used in formal, administrative, or community contexts: government offices post regulations, schools announce events, and businesses advertise promotions. It implies intentionality and visibility—not just sticking something anywhere, but placing it where people can see it. Unlike casual verbs like 挂 (guà, 'to hang') or 放 (fàng, 'to put'), 张贴 specifically involves flat, paper-based materials meant for public reading.