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A librarian.
The librarian in charge is usually called the Chief Librarian.
The possessive form of the singular noun librarian is librarian's.Example: The librarian's desk was stacked with books.
Librarian and password
Librarian
The word "librarian" in French is "bibliothécaire."
At a private library the librarian is employed by the library. The librarian at a school is employed by the school.
The possessive form is librarian's.
"The Librarian: Quest for the Spear" (2004). "The Librarian: Return to King Solomon's Mines" (2006). "The Librarian: The Curse of the Judas Chalice" (2008).
"Is this what you were looking for?" asked the librarian.
Marian the Librarian
Tales of a Librarian was created in 1990.