Classifications of consonants

CONCLUSION
A concrete noun is “a noun denoting something material and nonabstract.” By contrast, an abstract noun is “a noun denoting something immaterial and abstract.” So, what does this mean?
Let’s start with concrete nouns. One common way of understanding concrete nouns is that they refer to any person, place, or thing that you can experience with your five senses. If you can see, smell, hear, taste, or touch something, that object is referred to by a concrete noun. Words like photograph, cologne, music, food, and snake are all concrete nouns. All of the living and nonliving physical objects in the universe are referred to by concrete nouns.
Abstract nouns are used to refer to everything else. Intangible things that exist as ideas or concepts are referred to by abstract nouns. Words like sadness, agility, philosophy, and ambitions are all abstract nouns.
Let’s look closer at these two types of nouns to see if we can understand their differences.
Concrete nouns
Of the two, concrete nouns are more common and are, generally, easier to understand. If you can use any of your five senses to interact with something, that something will be referred to by a concrete noun. Although you cannot see air, you can still feel it and so the word air is a concrete noun. Even extremely small things like bacteria and atoms use concrete nouns.
There is one other thing to keep in mind about concrete nouns that isn’t obvious. Fictional or imaginary people, places, and things are also often referred to by concrete nouns. the words Godzilla, Narnia, and fairy are all concrete nouns. Obviously, none of these things actually exist—sorry, Godzilla fans! However, as the logic goes (you know how grammarians love their logic), they would all have a physical form if they did exist, and so we refer to these things using concrete nouns.
If you’re looking for more detail on the subject, you can learn more about concrete nouns in our in-depth analysis of them here.

Examples of concrete nouns

Concrete nouns are numerous and extremely common. Many of the other types of nouns are also concrete nouns. This means that concrete nouns may also be singular nouns or plural nouns. They may be common nouns or proper nouns. They may be collective nouns, countable nouns, or uncountable nouns. You can see how diverse concrete nouns are by checking out these examples:
Abstract nouns are a bit trickier to understand. As we’ve said, nouns can refer to people, places, and things. When we say “things,” we don’t only mean physical objects but also intangible things like emotions, ideas, concepts, and beliefs. We use abstract nouns to refer to things that don’t have a physical form but exist as ideas or concepts. We use abstract nouns to refer to emotions. Although we often say that we “feel” sadness or anger, we can’t actually touch these things with our hands. You can’t see, hear, smell, taste, or touch sadness. You can see or hear a person that is feeling sad but sadness itself doesn’t exist as an actual object that we can eat or buy from a store.
Understanding abstract nouns is not as challenging as you think. Review our explainer on abstract nouns here.