No, "eighteenth" is an ordinal number used to describe the position of something in a sequence (e.g., the eighteenth century). It is not a common noun that refers to a general person, place, or thing.
"Eighteenth" is an ordinal number, specifically the ordinal form of the cardinal number "eighteen." In grammar, it can function as an adjective or a noun.
"Microphone" is a common noun.
"Whales" is a common noun.
The common noun for the proper noun "Linda" is "woman" or "person."
A common noun for the proper noun "Linda" could be "woman" or "person."
Eighteen can be both an adjective, meaning one more than seventeen, or a noun meaning the cardinal number that is the sum of seventeen and one.
common noun
Common
Common noun
common
Pea is a common noun, and peas is the plural...still a common noun.
A common noun.
Most definitely a common noun.
Camel is a common noun.
Th word tail is a common noun because the first letter of a proper noun is capitalized.
common
it is re@lly @ common noun