Is subway a proper noun or a common noun?

Answer 1

Subway is a common noun unless you are talking about the resturant. Proper nouns are the unique names of people, places, or things. Common nouns are the words for general things. If a common noun is part of a name, it becomes a proper noun. Pronouns always replace proper and common nouns.

Answer 2

Nouns are people places and things. Since a subway is an object it is a noun. Verbs describe actions such as running, jumping, skipping, and hopping.