A concrete noun is noun that you can experience, in some shape or form, physically. Concrete nouns are things that we can detect or manipulate with our human sense. You can either touch it, hear it, taste it, feel it, and/or smell it. In most cases concrete nouns can be detected by several of the human senses. An example of a concrete noun would be a baseball mitt, you know the glove that we catch baseballs with. You can definitely touch, feel, and smell a baseball mitt. I wouldn't recommend it, but you can taste a mitt as well. When you are catching a baseball, you can also here the mitt.
Nouns fall into two categories concrete, as we have discussed, and abstract. These are the nouns (people, places, or things) that we cannot detect or perceive with our five senses. In many cases these are human emotions and feelings. For example, honesty is an abstract noun. You cannot detect honesty with your senses unless you are a superhero, but honesty is a noun. This is why we call it abstract. The worksheets below will have you classifying nouns as concrete or abstract in an attempt to help improve your language skills.