The noun 'toad' (lower case t) is a common noun, a general word for an amphibious creature.
A proper noun is the name or title of a specific person, place, or thing; for example, Mortimer Toynbee (fictional toad character in Marvel Comics) or Toad's Place (music cafe) in New Haven CT.
It is a common noun.
No, to be a proper noun it has to b naming a specific amphibian. A proper noun wouldn't be frog, or toad, either, it would be Jenny the frog, or Bert the toad.
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.
Common
It is a proper noun, because it is the name of a specific thing.
proper
Proper noun
Pencil proper or common noun
it's a common noun. a proper noun would be Spider-Man.
Proper noun or common noun
The noun cassette is a common noun.
a common noun?
The answer is proper noun. Examples of common noun and proper noun are: Proper noun: Mary Collins Common noun: monkey