1. The base form (or citation form): This is the singular, uninflected form of the noun. It's the form you'd find listed alphabetically in the dictionary. For example, "dog," "tree," "happiness."
2. The plural form: This is the form of the noun that indicates more than one. It's usually listed next to the base form, often separated by a comma or semicolon. For example, "dogs," "trees," "happinesses."
Some dictionary entries might also include other information, such as:
* Parts of speech: Indicating that the word is a noun.
* Pronunciation: Showing how the word is pronounced.
* Etymology: The origin and history of the word.
* Definitions: Explaining the meaning of the word.
* Example sentences: Showing how the word is used in context.