An abstract noun is a type of noun that refers to something that cannot be physically perceived with the five senses. It typically represents qualities, emotions, ideas, concepts, or states of being. Unlike concrete nouns, which can be seen, heard, smelled, tasted, or touched, abstract nouns are intangible and cannot be directly observed or experienced. They often require us to think beyond the immediate physical world and consider more philosophical or imaginative aspects of life. Examples of abstract nouns include love, courage, happiness, beauty, freedom, and knowledge.
