any plan or proposal that is grandiose, impractical, and usually unsolicited: You're always coming around here with your big ideas.
purpose; intention; aim: What's the big idea of shouting at me?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use big idea in a sentence
Levitt finds out what makes Romer a serial “quitter,” why you can’t manufacture big ideas, and what happened when Romer tried to start a charter city.Paul Romer: “I Figured Out How to Get Myself Fired From the World Bank.” (People I (Mostly) Admire, Ep. 11) | Steven D. Levitt | January 9, 2021 | Freakonomics
Coming a little ahead of today’s sustainability movement, its big idea was to tell the story of where the clothes came from and how they were made.Is the fashion industry’s sustainability effort only skin-deep? | Aaron Pressman | November 13, 2020 | Fortune
After all, a big idea that can’t be turned into reality will remain a dream.
His big idea is to grow the US population to that eye-popping number, a 200% increase, by encouraging massive new waves of immigration and child-bearing.
Prior to the pandemic, people could glob onto someone else’s idea in a meeting or pretend to contribute to a project by pontificating big ideas without contributing meaningful work.‘People have to be more aware of bullshitters’: Why there’s a push for more realism in advertising now | Kristina Monllos | July 27, 2020 | Digiday
This is my big idea in How Sex Became a Civil Liberty: We made it up.
The big idea is that geography explains why the West rules the world—and why its domination may not last much longer.Ian Morris’s Big Idea: Why the West Will Fall Behind | Ian Morris | March 1, 2013 | THE DAILY BEAST
Every big idea he has is a liberal idea that drowns us in debt.
President Obama's big idea is that government investment will trigger demand for skilled American labor.
Remember when the big idea in Obamaland was to run against the do-nothing Congress?Michael Tomasky: Is Barack Obama Too Weak to Win in November? | Michael Tomasky | June 5, 2012 | THE DAILY BEAST
He talks nonsense some of the time, but occasionally he knocks me down with a big idea—or his way of putting a big idea.A Hoosier Chronicle | Meredith Nicholson
"I say, Maggie, what was the big idea in keeping us—" he was beginning in a grumbling tone, when he saw Larry just beyond her.Children of the Whirlwind | Leroy Scott
The big idea was, of course, that where gold is found the white man comes along, and the Indian he has to move.Stepsons of Light | Eugene Manlove Rhodes
He always did that when he was thinking hard, and now that the "big idea" had come to him he was thinking harder than ever.Bunny Brown and His Sister Sue on Grandpa's Farm | Laura Lee Hope
The big idea now is to get Ivan Nikolsk to a good Russian hospital, and get him there fast.Dave Dawson on the Russian Front | R. Sidney Bowen