What kind of noun is United States?

Answer 1

The noun 'United Kingdom' is:

• a proper noun, the name of a specific group of countries and territories;
• a singular noun, a word for for one group;
• a concrete noun, a word for a physical group of countries and territories;
• a compound noun, a noun made up of two words that form a noun with a meaning of its own.

Answer 2

The noun 'nations' is a plural, common, concrete noun.

The noun 'nation' is a word for large aggregate of a people united by common descent, history, culture, or language, inhabiting a particular country or territory.

The plural form 'nations' is a word for two or more of these groups.

Answer 3

The noun United States is a singular, concrete, compound, proper noun.

The noun United States is a proper noun as the name of a specific place. Proper nouns are always capitalized.