鸾 is a mythical bird in Chinese mythology, often paired with the phoenix (凤) as a symbol of grace, nobility, and marital harmony. It appears in classical literature and idioms (e.g., 鸾凤和鸣 'harmony of luan and phoenix' — a blessing for a happy marriage). You won't hear it in daily conversation, but it's common in formal or literary contexts, especially wedding blessings and historical fiction.