Meaning & Definition of word "Idea"

Idea

/aɪˈdiːə/

1. A thought or suggestion as to a possible course of action.
- Example: She had an idea for a new marketing campaign.
2. A concept or mental impression.
- Example: The idea of freedom is central to democracy.
3. An opinion or belief.
- Example: His idea about the project was well received by the team.
4. A plan or intention.
- Example: We should turn her idea into a reality.
5. A notion or understanding of something.
- Example: I have a vague idea of what you mean.

From Greek 'idea', meaning 'form, pattern, or appearance.'

the idea of:

the concept or notion regarding something.

have an idea:

to possess a thought or plan about something.

good idea:

a suggestion that is wise or useful.

bad idea:

a suggestion that is not wise or practical.

concept:

An abstract idea or a general notion.

thought:

An idea or mental image.

notion:

A belief or opinion.

Meaning: brainwave

Example Sentence: He had a brainwave that could change the whole project.

Meaning: lightbulb moment

Example Sentence: When she explained it, I had a lightbulb moment and finally understood.