In Jainism, "Lanchan" (लाञ्छन) means "symbol" or "emblem." It holds great significance as it represents the different Tirthankaras (spiritual teachers) or important concepts visually. Each Tirthankara has a unique Lanchan or emblem which helps devotees recognize and distinguish them.

For example:

• Lord Mahavira’s Lanchan is a lion.
• Lord Parshvanatha’s Lanchan is a serpent (cobra).
• Lord Rishabhanatha’s Lanchan is a bull.

These symbols help followers focus their devotion and remember the qualities and virtues of the Tirthankaras. Lanchans are often seen on idol bases, in temples, and Jain scriptures.

Thus, Lanchan serves as a sacred and respectful way to honor the enlightened beings in Jainism.