How to Say "to reason" in Spanish
The most common Spanish word for “to reason” is “razonar” — use this word when you mean to think logically or to use your reason, often implying a need for careful consideration before acting..
razonar
/rah-soh-NAR//rasoˈnaɾ/

Examples
Tómate un momento para razonar antes de decidir.
Take a moment to reason (think logically) before deciding.
Los seres humanos tienen la capacidad de razonar.
Human beings have the ability to reason.
Es difícil razonar con alguien que está muy enfadado.
It is difficult to reason with someone who is very angry.
A Regular Friend
Good news! Razonar is a totally regular verb. It follows the exact same pattern as common words like 'hablar' or 'cantar' in all tenses.
Using 'Con'
When you want to say you are reasoning 'with' someone to convince them, use the word 'con' just like in English: 'razonar con mi jefe'.
Don't confuse with 'Price'
Mistake: “Using razonar when you want to bargain for a lower price.”
Correction: Use 'regatear' for haggling over prices; 'razonar' is only for logical thinking.
argumentar
/ar-goo-men-TAR//aɾɡumenˈtaɾ/

Examples
Tienes que argumentar tu respuesta en el examen.
You have to provide reasons for your answer on the exam.
Ella argumentó que el plan era demasiado costoso.
She argued that the plan was too expensive.
El abogado argumentó a favor de su cliente con mucha pasión.
The lawyer argued in favor of his client with a lot of passion.
Using 'que' to link ideas
When you want to say what you are arguing for, use the word 'que' after the verb to connect to the next part of your sentence, like 'Argumento que es verdad' (I argue that it is true).
Completely Regular
This verb follows the standard pattern for all verbs ending in -ar, so once you know the basic 'ar' rules, you can conjugate this perfectly!
Argumentar vs. Discutir
Mistake: “Using 'argumentar' when you mean you are having a loud, angry fight.”
Correction: Use 'discutir' for a verbal fight. Use 'argumentar' for a logical, calm explanation of your points.
discurrir
/dees-koo-reer//diskuˈrir/

Examples
Tuvo que discurrir un plan para escapar.
He had to devise a plan to escape.
Déjame discurrir un poco antes de decidir.
Let me think/reason for a bit before deciding.
Es capaz de discurrir soluciones brillantes.
He is capable of coming up with brilliant solutions.
Mental Movement
Think of this meaning as your thoughts 'flowing' toward a solution. It's the mental version of water flowing.
Using it for simple thoughts
Mistake: “Discurro que es tarde.”
Correction: Pienso que es tarde. Use 'discurrir' for deeper reasoning or invention, not for simple opinions.
Razonar vs. Argumentar
Related Translations
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