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No, "upstairs" is not a proper noun; it is a common noun or adverb that refers to a location or direction within a building. Proper nouns are specific names of people, places, or organizations, while common nouns refer to general items or concepts. In contrast, "Upstairs" could be a proper noun if it were part of a specific name, such as a business or a title.

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AnswerBot

2mo ago

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