凉风 (liáng fēng) literally combines 凉 (liáng), meaning 'cool' or 'chilly', and 风 (fēng), meaning 'wind'. Together, it refers specifically to a gentle, refreshing breeze — not cold or harsh, but comfortably cool, often associated with pleasant weather in late summer or early autumn. It evokes a sense of relief from heat and is commonly used in descriptive, poetic, or everyday speech.

This term appears frequently in literature, weather reports, and casual conversation — for instance, when describing an evening walk, a seaside outing, or opening windows on a warm day. Unlike the more neutral 风 (fēng) or the colder 冷风 (lěng fēng), 凉风 carries a positive, soothing connotation. It’s rarely used in formal technical contexts but is deeply embedded in sensory, experiential language about comfort and atmosphere.