Idea
Idea noun - Something that one hopes or intends to accomplish.
Usage example: the idea is to get the information without seeming to be nosy
Plan is a synonym for idea in intention topic. In some cases you can use "Plan" instead a noun "Idea", when it comes to topics like aim, planned, or. popular alternative
Plan
Plan noun - A method worked out in advance for achieving some objective.
Usage example: there is a contingency plan in the office for handling almost any emergency
Idea is a synonym for plan in scheme topic. You can use "Idea" instead a noun "Plan", if it concerns topics such as intention, aim, planned. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
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Dumbass Has a Point: For all his idiocy, Dougal does occasionally come up with a plan or idea that genuinely impresses Ted.
Source: Series / Father Ted -
It's the secret source of his ability to always come up with a plan or idea in a pinch.
Source: Talking Is a Free Action -
I mean somebody comes in with a preposterous plan or idea and than suddenly everyone's on the gas, nobody's on the brakes, nobody's thinking!
Cite this Source
Plan and Idea. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/idea/plan
Idea & Plan. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/idea/plan>.
Plan or Idea. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/idea/plan.
Google Ngram Viewer shows how "idea" and "plan" have occurred on timeline