big idea
Americannoun
-
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?
Etymology
Origin of big idea
An Americanism dating back to 1920–25
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“The Death of Robin Hood’s” one big idea is compelling: History gets written and erased in real time.
From Los Angeles Times ● Jun. 18, 2026
Presumably whenever a stockpicker—whether investor or analyst—chooses the next big idea, that choice isn’t made cavalierly.
From Barron's ● Jun. 10, 2026
But then, the agency people unveiled their big idea: to create a campaign centered around reanimated digital avatars of our dead loved ones.
From Slate ● Apr. 23, 2026
The big idea was to take Tesla’s learnings from its self-driving technology, which uses software and cameras to autonomously drive automobiles.
From The Wall Street Journal ● Jan. 3, 2026
One big idea behind finding your model was that when you did, you’d glimpse your future.
From "Never Let Me Go" by Kazuo Ishiguro
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.