What do TNI and its antonyms mean?

TNI

Traffic noise index

TNI is a unique protein in heart cells. Its content in blood is a good index for diagnosis and treatment of myocardial injury and other acute coronary symptoms in heart disease.

TNI (transnational index) transnational operation index

The arithmetic average calculated according to the proportion of foreign assets, foreign sales and foreign employees of an enterprise. The higher the index value, the higher the degree of internationalization of multinational companies.