绿叶 (lǜ yè) literally means 'green leaf' — combining 绿 (lǜ), meaning 'green', and 叶 (yè), meaning 'leaf'. As a concrete noun, it refers to the green, photosynthetic part of a plant, especially when fresh and healthy. In botany or everyday description, it evokes images of lush foliage, spring growth, or natural vitality.

Figuratively, 绿叶 is widely used in Chinese idioms and media to describe a supporting role — someone who helps highlight or enhance another person’s achievements without seeking attention themselves, much like leaves frame and nourish a flower. This metaphor draws on the visual contrast between prominent flowers and their humble, essential green backdrop. The term carries positive connotations of humility, reliability, and quiet contribution.