How to Say "notion" in Spanish
The most common Spanish word for “notion” is “idea” — use 'idea' when referring to a vague thought, a guess, or a general lack of understanding about something..
idea
/ee-DEH-ah//iˈðe.a/

Examples
No tengo ni la más remota idea de lo que hablas.
I don't have the slightest idea what you're talking about.
Me da la idea de que no está contento.
I get the impression that he is not happy.
Para que te hagas una idea, es tan grande como un coche.
To give you an idea, it's as big as a car.
concepto
kon-SEP-toh/konˈθepto/

Examples
El concepto de la libertad es complejo.
The concept of freedom is complex.
Necesitas entender el concepto clave antes de continuar.
You need to understand the key concept before continuing.
Su nuevo proyecto tiene un concepto muy original.
Their new project has a very original concept.
Masculine Noun Rule
Remember that 'concepto' is always masculine, even though it ends in '-o.' Use 'el' or 'un' with it: 'el concepto'.
Using 'la' instead of 'el'
Mistake: “La concepto”
Correction: El concepto. Treat it like a male word.
Concepto vs. Idea
Related Translations
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