Answer

Adinath Bhagwan is known by several respected names in Jain tradition:

• Adinath – the First Lord
• Rishabhdev / Rushabhdev – his widely used name
• Rishabhanath / Rushabhnath – Lord Rishabh
• Adishwar – the First Ishwar / First Lord
• Adinath Prabhu – Lord Adinath
• Rishabhdev Bhagwan – Bhagwan Rishabhdev
• Pratham Tirthankar – the First Tirthankar
• Ikshvaku Kul Tilak – jewel of the Ikshvaku lineage
• Nabhiraja Putra – son of King Nabhi
• Marudevi Nandan – son of Mother Marudevi

Explanation

Adinath Bhagwan is the first Tirthankar of the present Avasarpini time cycle. His most common names are Rishabhdev, Rishabhanath, Adinath, and Adishwar.

Takeaway

All these names respectfully refer to the same Bhagwan: Shri Adinath Bhagwan, the first Tirthankar of Jain Dharma.