A noun is a part of speech that names a person, place, thing, or idea. In the case of 'dinner,' it is used to name an evening meal. It is used in singular and plural forms, as demonstrated by the example sentences below.
A noun always starts with a capital letter and is typically preceded by an article (a, an, or the). A noun should also agree with the verb in the sentence, depending on whether it is singular or plural.
1. I need to go grocery shopping, since I'm having guests over for dinner.
2. We had sushi for dinner last night.
3. I'm so full after dinner that I can't even think about having dessert.