Is monkey a proper noun

Answer 1

No, the noun monkey is a common noun.

A common noun becomes a proper noun when it is the name of a person, place, thing, or a title; for example:

• Wild Futures' Monkey Sanctuary, Looe, UK
• Monkey Business, 1931 Marx Brothers or 1952 Cary Grant & Ginger Rogers
• Monkey Road, Elgin, TX
• The Monkey Bar, New York, NY

Answer 2

The word monkey is a common noun, a word for any monkey.

A common noun is a word for any person, place, or thing.

A proper noun is the name of a person, place, thing, or a title; for example:

• Curious George, character in children's stories, by Margret & H.A. Rey
• Monkey Island, OK
• Brass Monkey (bar and grille), New York, NY
• 'Monkey Business' 1931 with the Marx Brothers, and 'Monkey Business' 1953 with Cary Grant and Ginger Rogers.