"Rasna" is a Sanskrit term that refers to the taste buds. It is often used in Ayurveda, a traditional Indian medicine system, to describe the sense of taste and flavor. There are several synonyms for the word "rasna" in Sanskrit that describe various aspects of this sensory experience. These include "Vyanjana" which refers to the flavor or seasoning of a dish, "Amla" which means sour taste, "Lavana" which means salty taste, and "Madhura" which refers to the sweet taste. Other synonyms for "rasna" include "Rasika" which refers to a connoisseur of taste, and "Rasayana" which refers to the rejuvenation or revitalization of the body and mind through taste and diet.