Definition of "improv" []

• Informal Improvisation: practiced improv with my acting class. (noun)
• Informal An improvisation: did a funny improv about looking for a job. (noun)

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.

• "One of the goals in improv is to bypass the inner critic and just do the first physical action that drops into your mind."
• "And their improv is almost always better than the script."
• "Rifling through a funky set that included bass-heavy grooves like "It's Ice," "NICU" and "The Moma Dance," Phish kicked off its fall tour in improv-laden style."