idea

Less common meanings

5. 5
   nouncountable

   A purposeful aim or goal; the intent behind an action.

   The idea of the exercise is to build trust within the team.

   The general idea behind the campaign was to raise awareness.

   UsageUsually the idea is to + verb or the idea of something; that's the idea tells someone they are doing it right.

   Similaraim, point, purpose, goal, object

   Note

   Conversation leans on this sense in set phrases. "That's the idea" approves of what someone is doing, and "not a bad idea" endorses a plan with understatement. Joseph C. Lincoln's Mr. Pratt's Patients (1913) gives the second as "'twouldn't be a bad idee". The spelling idee there catches a speaker's pronunciation and is not a standard form. Source

   Checked 30 Oct 2026 · 3 facts

   • Joseph C. Lincoln wrote Mr. Pratt's Patients, first published in 1913. upload.wikimedia.org
   • The book contains the exact wording "'twouldn't be a bad idee", in its narrator's account. home.hiwaay.net
   • Idee is a colloquial representation of idea, consistent with the narrator's dialectal voice. en.wikisource.org
6. 6
   nouncountable

   A vague or fanciful notion about something, the kind of belief that comes as a feeling, hunch, or impression.

   He had a funny idea that the house was watching him.

   I have an idea she's hiding something from the rest of us.

   UsageOften have an idea (that) or get the idea (that) + clause, or a funny idea.

   Similarfeeling, hunch, notion, suspicion, inkling

7. 7
   Plato's formnouncountable

   An abstract archetype of a thing, against which real examples are seen as imperfect copies; the pure essence rather than actual instances.

   For Plato, a physical triangle only approximates the idea of the triangle.

   Philosophers debated whether the idea of justice exists apart from just acts.

   Similarform, archetype, essence

   Note

   The philosopher's sense, and the closest to the Latin the word was borrowed from: idea meant a Platonic archetype, from Greek idéa, "notion, pattern", and ultimately from a verb meaning "I see". The idea is what the mind sees behind the things. It usually takes the and of (the idea of the triangle, the idea of justice). That pattern separates it from the everyday "thought", which is anyone's passing notion. Source

   Checked 30 Oct 2026 · 4 facts

   • English idea was borrowed from Latin idea, meaning a Platonic idea or archetype. en.wiktionary.org
   • The Latin word derives from Greek idéa, glossed as "notion, pattern". en.wiktionary.org
   • The Greek ancestry includes a verb glossed as "I see". en.wiktionary.org
   • The philosophical explanation concerns an archetype apprehended mentally rather than a visible instance. en.wikisource.org
8. 8
   musical themenouncountable

   A musical theme or melodic subject within a composition.

   The symphony's opening idea returns, transformed, in the final movement.

   She developed a short musical idea into a full orchestral piece.

   Similartheme, motif, subject

   Note

   In composition and analysis, an idea is the material a piece is built from. A composer states it, develops it, returns to it and transforms it. It sits close to theme and subject, and like them it takes verbs of working: develop an idea, restate it, vary it. The Greek sense of "pattern" behind the philosopher's archetype fits here too. Source

   Checked 30 Oct 2026 · 2 facts

   • Musical ideas provide material that composers state, develop, repeat and transform. bpb-us-e1.wpmucdn.com
   • The word's Greek ancestor had the sense “pattern,” underlying the philosophical archetype sense. en.wiktionary.org
9. 9
   nounobsolete

   A conception of a person or thing as a perfect example; what is now called an ideal.

   Note

   Older writers could call a person the idea of a virtue, meaning its perfect embodiment. Modern English says the ideal instead, and that is the word to use today. Meet this sense only when reading earlier texts, where "the very idea of a gentleman" praises the man rather than describing a thought about him. Source

   Checked 30 Oct 2026 · 1 fact

   • Historically, “idea” could denote someone conceived as a perfect example or embodiment. en.wiktionary.org
10. 10
    nounobsolete

    The shape or outward form of a thing, or a feature that is essential to its nature.

    The remembrance whereof (which yet I beare deepely imprinted in my minde) representing me her visage and Idea so lively and so naturally, doth in some sort reconcile me unto her.

    1603, Michel de Montaigne, The Essayes

    Note

    A reading trap in older prose: John Florio's 1603 translation of Montaigne recalls the "visage and Idea" of death, pairing the word with a face. A modern reader expects the mental picture, but here idea names the shape and character of the thing itself. Recognize it in early texts; do not revive it in your own writing. Source

    Checked 30 Oct 2026 · 4 facts

    • John Florio's English translation of Montaigne was first published in 1603. clarklibrary.ucla.edu
    • The translation contains the exact phrase "visage and Idea". hyperessays.net
    • The context identifies the referent as personified death, recalled through Montaigne's experience of nearly dying, rather than a woman. hyperessays.net
    • The quotation illustrates the historical sense of idea as form, shape, or an essential characteristic. en.wiktionary.org