跑騁 is a literary verb meaning 'to gallop freely'—typically describing horses or other swift animals moving unrestrained across open terrain. The first character 跑 (pǎo) means 'to run', while 騁 (chěng) carries the classical sense of 'to stretch out, to range freely'—often implying vigor, expansiveness, and unconfined motion. Together, they evoke a vivid image of powerful, unhindered movement, especially in natural or heroic settings.

This compound appears almost exclusively in formal, poetic, or descriptive writing—such as classical poetry, historical narratives, or evocative prose about landscapes or martial prowess. It is rarely used in spoken Mandarin or casual contexts. While it can occasionally be applied metaphorically (e.g., 'ideas running freely'), its core imagery remains rooted in equine or animal locomotion across vast spaces like grasslands, steppes, or battlefields.