American Heritage Dictionary
(1)
Century Dictionary
(5)
GNU Webster's 1913
(1)
WordNet
(2)
Elsewhere on the web
On the flip side, the ratings and revenue collapse of San Francisco's once-mighty KRON would serve as a cautionary tale to WHDH.— Variety.com
Monkman suggests the career of celebrated painter Norval Morrisseau as a cautionary tale:— Thestar.com - Home Page
Dyson should serve as a cautionary tale to any scientist commenting well outside the area of his expertise.— RealClimate
GARY Winick's exceedingly lame "Bride Wars," a truly inauspicious start to 2009 at the movies, is interesting only - and very slightly, at that - as a cautionary tale about Hollywood stardom.— Bricks and Stones Gossip
However, next week as a special bonus, I will run a story on the C64 laptop that WASN'T - a kind of cautionary tale of modding gone wrong.— Jeremy Zawodny's linkblog

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 month.