American Heritage Dictionary
(4)
Century Dictionary
(51)
GNU Webster's 1913
(1)
WordNet
(3)
Elsewhere on the web
I think this era is the most mature, most beautiful and the most powerful.— Roadrunner Records Latest News
What sets Klonoa apart from the platforming competition of the era is the way it plays with so many of the genre's conventions.— GameSpot's News, Screenshots, Movies, Reviews, Previews, Downloads, and Features
MM: The greatest freedom of this era is the ability to construct and shape our personal narratives.— Thomas R. Clifford: Bringing Brands to Life! Remarkable Corporate Videos
The best known radicals of the era were the Black Panthers, an organization formed in Oakland, California, in 1966.— Recently Uploaded Slideshows

American Heritage Dictionary (1)
Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about twice a day.