idea
More generally, any result of mental activity; a thought, a notion; a way of thinking.
Word facts
Definition of Idea
A conception in the mind of something to be done; a plan for doing something, an intention.
Example sentences
The mere idea of you is enough to excite me.
I have an idea of how we might escape.
Using Idea well
A closer look at how idea is used — meaning in plain English, how close synonyms differ, and examples at different levels.
A thought, plan, or mental picture that forms in your mind.
Use 'idea' for any thought you have, from a passing notion to a plan you want to act on. It fits nearly every register, from casual chat to formal writing.
Extremely common everywhere: brainstorming, meetings, essays, casual conversation, and creative work.
Do not confuse 'idea' with 'ideal': an idea is a thought, while an ideal is a standard of perfection you aim for.
- notion
- lighter and vaguer — often a half-formed or fanciful idea
- concept
- more abstract and formal — an idea worked out enough to be defined
- thought
- broader — any mental activity, not necessarily a plan or proposal
- plan
- more concrete — an idea developed into steps for action
- brainwave
- informal and upbeat — a sudden clever idea
- Beginner I have a good idea for the party.
- In writing The whole idea behind the redesign was to make the app easier for first-time users.
- Advanced It was a beautiful idea in theory, but it collapsed the moment it met the real budget.
An idea is what pops into your head; add an 'l' and 'ideal' becomes the perfect version you wish for.
Synonyms for Idea
Words that rhyme with Idea
Try Idea in the word tools
Browse words near Idea
Explore more words that start with the letter I in Word Explorer, or use the A-Z browser to discover other vocabulary starting from any letter.
FAQ
Questions people ask
What does idea mean?
More generally, any result of mental activity; a thought, a notion; a way of thinking. It is a noun.
How many syllables does idea have?
There are 3 syllables in idea, divided as y·dee·uh when spoken.
What part of speech is idea?
In a sentence, idea functions as a noun. As a noun, it names a thing, idea, or concept.
What are synonyms for idea?
Close in meaning to idea are mind, theme, thought, estimate — choose the one whose tone fits your sentence.
How do you use idea in a sentence?
Example: "The mere idea of you is enough to excite me."