Definition of "high wire" []

• A tightrope for aerialists that is stretched very high above the ground. (noun)
• High-wire act Slang A risky job or operation. (idiom)

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.

• "The tension that precedes the high wire aerialists attempting for the first time the death-defying simultaneous three-person tri­ple somersault."