Yes, "courtier" is a common noun. It refers to a person who attends the court of a sovereign or other royal personage, typically as a flatterer or advisor. Common nouns are general names for people, places, or things, as opposed to proper nouns, which name specific entities.
Courtier is a noun.
The Book of the Courtier, also called The Courtier, was written by Baldassare Castiglione.
The courtier to the king was looking as royal as him. This is a sentence containing courtier in it.
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.
it is re@lly @ common noun
"Park Avenue" is a proper noun, because it is a place. Proper nouns like this should always be capitalized.