Concrete Noun - A concrete noun is a noun that you can experience with your five senses: sight, sound, touch, taste, and smell. It refers to tangible things that exist physically.Examples: table, dog, flower, music, pizzaAbstract Noun - An abstract noun refers to something that you cannot perceive through your five senses. It represents ideas, concepts, qualities, emotions, or states of being.Examples: love, freedom, justice, happiness, courageCollective Noun - A collective noun is a noun that refers to a group of things or people considered as a single unit.Examples: team, family, committee, crowd, army