To discontinue a session of (a parliament, for example).(verb-transitive)
To postpone; defer.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "prorogue" in a sentence
"I admit I didn't know the word prorogue until today, but what a chess match this has been."
"The group will be hosting the Anti-Prorogue Free Perogies Party/Show - because who doesn't think of perogies when they hear the word prorogue?"
"If the reason to prorogue is to avoid a vote of confidence, I wouldn't sign it myself."