* Common Noun: Yes, "hand" is a common noun. It refers to a general, everyday object (a part of the human body). It's not a specific, unique name like a person's name.
* Proper Noun: No, "hand" is not a proper noun. Proper nouns are names of specific people, places, or things (e.g., John, London, Eiffel Tower).
* Collective Noun: No, "hand" is not a collective noun. Collective nouns refer to groups of people or things (e.g., team, flock, army). While a "hand" might be part of a group (like a "handful"), the word itself doesn't refer to the group itself.
* Abstract Noun: No, "hand" is not an abstract noun. Abstract nouns refer to ideas, qualities, or concepts that you can't touch or see (e.g., love, happiness, freedom). "Hand" is a physical, tangible part of the body.
In summary: "Hand" is a common noun that refers to a specific part of the human body.