Nyaya is a Sanskrit term that refers to logic or reasoning. There are several synonyms for the word nyaya, including tarka, viveka, and yukti. Tarka translates to "analysis," while viveka denotes "discrimination" or the ability to distinguish between different entities. Lastly, yukti means "reasoning" and is often used to refer to the application of logic in decision-making or problem-solving. While each of these words has a slightly different connotation, they all share a common meaning related to the use of reason and logic to understand the world around us. As such, they are essential concepts in Hindu and Buddhist philosophy and are often studied as part of formal education in India.