Definition of "groundbreaker" [groundbreaker]

• One that is original or innovative. (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.

• "But I have to say I feel like "groundbreaker" should be reserved for props that actually, you know, appear to break out of the ground."
• "Morris described herself as a "groundbreaker" in an interview with The Oakland Tribune in"
• "Unlike the more traditional big-wave surfing documentaries that followed in the wake of Bruce Brown's 1966 genre groundbreaker, The Endless Summer, Keep Surfing has very little to do with ocean surfing."