American Heritage Dictionary
(5)
Century Dictionary
GNU Webster's 1913
WordNet
(2)
Elsewhere on the web
The idea that the regime is afraid of trade and tourism is a fallacy.— Babalú Blog: an island on the net without a bearded dictator
He argued that "changing the regime is the only way to change the behavior," but if all else fails, the U.S. should use lasers to wipe out the missile.— Think Progress
"Significantly, the regime was also receiving intelligence from the Russians that fed suspicions that the attack out of Kuwait was merely a diversion," the report stated.— FP Passport

American Heritage 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 once a day.