How to Say "to decide" in Spanish
The most common Spanish word for “to decide” is “decidir” — use 'decidir' when you want to express the general act of making a choice between options, especially for personal decisions or simple choices..
decidir
/deh-see-DEER//de.siˈðiɾ/

Examples
Necesito decidir qué carrera universitaria voy a estudiar.
I need to decide what university degree I am going to study.
El árbitro decidió que fue falta y pitó el penalti.
The referee decided it was a foul and blew the whistle for the penalty.
¿Ya decidiste dónde quieres cenar esta noche?
Have you decided where you want to have dinner tonight yet?
Decidir vs. Decidirse
When used without 'se' (decidir), it means 'to decide a thing.' When used with 'se' (decidirse), it usually means 'to make up one's mind' after a period of doubt.
The Preposition Trap
Mistake: “Voy a decidir de ir al cine.”
Correction: Voy a decidir ir al cine. ('Decidir' usually takes a direct action, or the preposition 'a' when used with 'se'.)
determinar
day-ter-mee-NAR/de.teɾ.miˈnaɾ/

Examples
El equipo determinó empezar el proyecto la próxima semana.
The team decided to start the project next week.
Determinamos no rendirnos a pesar de los obstáculos.
We resolved not to give up despite the obstacles.
Using Determinar with Infinitives
When 'determinar' is followed by another action (verb), that action stays in its base form (the infinitive): 'Determinaron viajar juntos' (They decided to travel together).
General Choice vs. Formal Resolution
Related Translations
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