The term stamina is sometimes used synonymously and interchangeably with endurance. The philosophical subgenres posthumanism and transhumanism (sometimes used synonymously) are extensions of humanistic values. Often the term postern is used synonymously. Saubhagya-Lakshmi Upanishad synonymously uses Sri to describe Lakshmi. Another term sometimes used synonymously is palingenesis. The term attacca is used synonymously. The terms group electronegativity and substituent electronegativity are used synonymously. She refers to racism and white supremacy synonymously. Many use the term dermatitis and eczema synonymously. Chondromalacia patellae is a term sometimes used synonymously with PFPS. Acute abdomen is occasionally used synonymously with peritonitis. Myxedema is a term used synonymously with severe hypothyroidism. A term commonly used synonymously with "data processing system" is "information system". The terms peddler and hawker are often used synonymously. The calculus notations below can be used synonymously.