The word "contestants" is a common noun. It refers to individuals who participate in a contest or competition, and it is not the name of a specific person, place, or organization. Proper nouns, in contrast, refer to specific names and are typically capitalized.
The plural noun 'contestants' is a common noun; a general word for two or more people engaged in a competition; a word for any contestants of any kind.A proper noun is the name or title of a specific person, place, or thing.
Oh, dude, the proper noun in "All contestants dress as gorillas" is "Gorillas." Like, it's capitalized because it's the name of a specific group of contestants, not just any old contestants who happen to be wearing gorilla suits. So yeah, Gorillas with a capital G, that's the one.
Teachers I would presume.
proper
As a name of a road , Park Avenue', it is a proper noun, and both words star with a capital letter. However, when used separately, as 'the park, or 'the avenue', they are common nouns and so not need a capital letter.
common
common and proper
It is a proper noun, because it is the name of a specific thing.
common
it's a common noun. a proper noun would be Spider-Man.
Proper
Pencil proper or common noun