‘含笑’ literally means ‘to hold a smile’ — the character 含 (hán) means ‘to hold in one’s mouth’ or ‘to contain’, and 笑 (xiào) means ‘to smile’. Together, they describe a gentle, quiet, often inward smile with the mouth closed — not a broad, open-mouthed laugh. This expression conveys warmth, modesty, tenderness, or quiet amusement, and is commonly used in literary, poetic, or refined spoken contexts.

It frequently appears in descriptions of people’s facial expressions — especially women, children, or characters in classical literature — and also in fixed phrases like 含笑九泉 (to die peacefully, literally ‘smile while lying in the grave’). Unlike casual verbs like 微笑 (wēi xiào), 含笑 carries a subtle elegance and emotional restraint, making it more formal and evocative. It’s rarely used in fast-paced everyday speech but remains vivid in writing, storytelling, and expressive description.