In the sentence...We are moving to Belgium, a European country. Is Belgium a noun or adjective?

Belgium is a noun.

ty Ms.Sue

You're welcome! Just to clarify, Belgium is a noun in the sentence you provided. It refers to a specific place or location, which makes it a noun. In general, nouns are words that name a person, place, thing, or idea. If you're unsure about whether a word is a noun or adjective, you can try looking up its definition in a dictionary or thinking about how it is used in a sentence.