Which of these words has the following meaning:

"a period of 1000 years"

Millennium

The correct answer is Option (1) - Millennium

Meaning:
A millennium refers to a period of 1000 years. For example, the years from 1000 to 1999 make up one millennium.

Other options explained:

• Honorarium: A payment given for professional services that are rendered nominally without charge (e.g., a token payment to a guest speaker).

• Bibliomania: An excessive passion for collecting books.

• Century: A period of 100 years, not 1000.