The kanji 凸 generally represents a protrusion, something that sticks out, or a convex shape. It conveys the idea of something being raised or elevated from a surface. This can be a physical bump or an abstract concept of something standing out. It is often visualized as a "bump" or "peak."

・On-yomi (音読み): チョウ (chou) ・Kun-yomi (訓読み): でこ (deko)

⚫︎凸凹 Translation: Unevenness; bumps and hollows; irregularities. ⚫︎凸レンズ Translation: Convex lens. ⚫︎凸版印刷 Translation: Relief printing (printing from a raised surface).

The kanji 凸 is a pictograph. It depicts something protruding or projecting. It visually represents something that is raised or elevated. The shape itself looks like a bump or a convex surface.