How to Say "to stimulate" in Spanish
The most common Spanish word for “to stimulate” is “activar” — use 'activar' when 'to stimulate' refers to kickstarting or boosting a process, system, or function, like the economy or metabolism..
activar
/ak-tee-BAR//ak.tiˈβaɾ/

Examples
Beber agua fría puede ayudar a activar el metabolismo.
Drinking cold water can help stimulate the metabolism.
El gobierno quiere activar la economía con nuevas leyes.
The government wants to boost the economy with new laws.
Abstract Subjects
When used for the economy or biology, the word stays regular but is often used in the third person (it/they).
estimular
/es-tee-moo-lar//esti muˈlaɾ/

Examples
El café estimula el sistema nervioso.
Coffee stimulates the nervous system.
El gobierno quiere estimular la economía con nuevos préstamos.
The government wants to boost the economy with new loans.
La luz solar estimula la producción de vitamina D.
Sunlight stimulates the production of vitamin D.
No 'a' for things
Unlike when you stimulate people, you don't use 'a' when talking about objects or systems: 'Estimular la economía' (not 'a la economía').
Confusing with 'simular'
Mistake: “El café simula el cerebro.”
Correction: El café estimula el cerebro. 'Simular' means 'to pretend' or 'to simulate,' which is very different!
excitar
/ek-see-TAR//eksiˈtaɾ/

Examples
El descubrimiento excitó la curiosidad de todos.
The discovery stimulated everyone's curiosity.
Demasiada cafeína puede excitar el sistema nervioso.
Too much caffeine can stimulate the nervous system.
Sus palabras solo sirvieron para excitar los ánimos de la multitud.
His words only served to stir up the crowd's spirits.
The Emotional Trigger
When 'excitar' causes a reaction in someone else, it is often followed by 'a' (the personal 'a') if the receiver is a person, like: 'La música excitó a los jóvenes'.
A Regular Pattern
This verb follows the standard pattern for -ar verbs, so if you can conjugate 'hablar,' you can conjugate 'excitar'!
The False Friend Warning
Mistake: “Using 'excitado' to mean 'excited' for a trip or gift.”
Correction: Use 'emocionado' instead. 'Excitado' usually suggests physical or sexual arousal.
Confusing 'activar' and 'estimular'
Related Translations
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