What is the name for subject noun by itself without any modifiers?

There isn't a specific name for a subject noun by itself without any modifiers.

Here's why:

* Nouns are inherently "subjects": A noun is a word that names a person, place, thing, or idea. It's the fundamental building block of a subject.

* "Subject" is the function: A subject noun performs the action of the verb or is the focus of the sentence.

* Modifiers provide detail: Modifiers, like adjectives or adverbs, describe or modify the noun, adding more information.

Examples:

* "Dog" is a subject noun without modifiers. It's the subject of the sentence "Dog barks."

* "The fluffy brown dog" is a subject noun with modifiers. It's the subject of the sentence "The fluffy brown dog barks."

Key takeaway: While we don't have a specific name for a subject noun without modifiers, it's crucial to understand the role of nouns as subjects and the impact of modifiers in providing further information about them.