Idea and Key

Idea

Idea noun - Something imagined or pictured in the mind.

Show all Definitions

Key and idea are semantically related. In some cases you can use "Key" instead a noun "Idea".

Nearby Words: ideal, ideation

Key noun - An explanatory list of the symbols on a map or chart.

Show all Definitions

Idea and key are semantically related. Sometimes you can use "Idea" instead a noun "Key".

Nearby Words: keyed, keyboard, keying

old	old idea	old key
similar	similar idea	similar key
right	right idea	right key
original	original idea	original key
Other adjectives: single, simple, actual, real, big, wrong, bad, main, new, possible, strange, different.

Bobo has the idea to regurgitate a key to undo their shackles, and Pearl compliments him for his ingenuity in lifting a key off a guard and swallowing it.

Source: Swallow the Key
Sometimes that key is an actual physical object, though it can just as easily be a key phrase, or even just a thought or an abstract idea.

Source: Insubstantial Ingredients
It's one thing if you want your idea to spread and inspire people, but what if you want to keep your idea — like, say, the key to Powered Armor — to yourself to avoid it being abused?

Source: You Cannot Kill an Idea

Cite this Source

Key and Idea. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/idea/key

Idea & Key. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/idea/key>.

Key or Idea. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/idea/key.

Google Ngram Viewer shows how "idea" and "key" have occurred on timeline