Final answer:
Ethnocentrism is the belief that one's own culture is superior to others and is the correct standard by which other cultures should be judged.
Step-by-step explanation:
A form of certainty language that assumes our culture and its norms are the only right ones is known as ethnocentrism. Ethnocentrism is the belief or attitude that one's own culture is superior to all others. It is a perspective where one judges other cultures based on the standards and norms of their own culture. According to sociologist William Graham Sumner, ethnocentrism implies that other ways of life are not just different, but inferior and wrong. Almost everyone exhibits some degree of ethnocentrism, which often manifests in the belief that certain cultural practices or norms are the 'correct' ones, whereas those of other societies are 'incorrect'.