idea Definition

  • 1a thought or suggestion as to a possible course of action
  • 2a concept or mental impression

Using idea: Examples

Take a moment to familiarize yourself with how "idea" can be used in various situations through the following examples!

  • Example

    I have an idea for a new business.

  • Example

    She had no idea what he was talking about.

  • Example

    The idea of going back to school terrifies me.

  • Example

    The idea of traveling the world is very appealing.

idea Synonyms and Antonyms

Synonyms for idea

Antonyms for idea

Idioms Using idea

  • to suggest different ideas and discuss them informally


    We were just throwing ideas around, trying to come up with a plan.

  • an opportunity or idea that is considered to be the best or most important one that someone will ever have


    When she heard about the job offer, she knew it was the idea of a lifetime.

  • to not have any understanding or knowledge of something


    I don't have the foggiest idea what you're talking about.

Phrases with idea

  • to misunderstand something, often in a way that causes problems or offense


    I think you got the wrong idea about what I meant.

  • used to express shock, disbelief, or disapproval about something


    The very idea of leaving my child alone in the house all night is terrifying.

  • to not know or have any understanding of something


    I have no idea how to fix this problem.

Origins of idea

from Greek 'idein', meaning 'to see'


Summary: idea in Brief

The term 'idea' [aɪˈdiə] refers to a thought or suggestion as to a possible course of action, or a concept or mental impression. It spans contexts from business plans to travel aspirations, exemplified by 'I have an idea for a new business.' 'Idea' extends into phrases like 'get the wrong idea,' and idioms like 'throw ideas around,' denoting informal discussions, and 'the idea of a lifetime,' implying a unique opportunity.

How do native speakers use this expression?