a period of 100 years
hundred: ten 10s
wordnet.princeton.edu/perl/webwn

A century (From the Latin cent, one hundred) is one hundred consecutive years. Centuries are numbered ordinally (e.g. "The Seventh Century AD").
en.wikipedia.org/wiki/Century

Originally published in 1999 by Phaidon Press, Century is a coffee table book that is equal parts photography and history. It was both conceived and edited by Bruce Bernard, a picture editor for The Sunday Times Magazine. ...
en.wikipedia.org/wiki/Century (book)

Century are a French rock band formed in Marseille in 1979. Led by singer and lyricist Jean Duperron, Century are probably best known for their single "Lover Why" from the album And Soul It Goes in 1986. ...
en.wikipedia.org/wiki/Century (band)

Century was a character in the Marvel Comics Force Works comic series from 1994-1996. The character first appeared in issue #1 in July 1994.
en.wikipedia.org/wiki/Century (comics)

In the sport of cricket, a batsman reaches his century when he scores 100 or more runs in the innings.
en.wikipedia.org/wiki/Century (cricket)

Century is a 1993 British film, written and directed by playwright Stephen Poliakoff.
en.wikipedia.org/wiki/Century (1993 film)

The Century was produced by the Century Motor Company from 1911-13 and later renamed to the Century Electric Car company from 1913-15. Both companies operated out of Detroit, Michigan. The Century was an electric car with an underslung chassis. ...
en.wikipedia.org/wiki/Century (automobile)

A period of 100 years; often specifically a numbered period with conventional start and end dates, e.g., the twentieth century, which stretches from (strictly) 1901 through 2000, or (informally) 1900 through 1999. ...
en.wiktionary.org/wiki/century

A break of 100 points or more.
encyclopedia.kids.net.au/page/sn/Snooker