Which one should you use?
While reemplazar is a common way to express this idea, sustituir is often used in more formal or technical contexts to mean substituting one thing for another. You may also use cambiar as a formal option, though in different contexts cambiar can specifically mean to exchange or to switch.
How does it change in a sentence?
When you are replacing a person, you must use the personal 'a' before the object, such as in reemplazar a alguien. To indicate the thing that is being used as the replacement, typically use the preposition por (for example, reemplazar X por Y to mean replace X with Y). The noun form of the verb is reemplazo, meaning replacement.
How do you pronounce it?
/reemplaˈθaɾ/
Did you know?
- The word reemplazar contains the root emplazar, which in a legal context means to summon or to order someone to appear in court.
- The noun reemplazo is frequently used in military contexts to describe the draft or the new group of recruits taking the place of those discharged.
- In some Latin American dialects, cambiar is used as a shorthand for reemplazar even when no literal trade occurs, such as changing a lightbulb.
Examples in context
- Necesito reemplazar mi piano por uno nuevo.I need to replace my keyboard with a new one.This sentence shows how to use reemplazar to replace one object with another.Tatoeba #1527999 by marcelostockle, translation #679882 by ulyssemc1
- Es difícil reemplazar a un empleado tan calificado como él.It is difficult to replace an employee that is as qualified as he is.This sentence demonstrates the use of the personal 'a' when replacing a person with reemplazar.Tatoeba #1256497 by marcelostockle, translation #1256183 by stb
- Quisiera reemplazarlo.I'd like to replace it.This sentence shows the use of the object pronoun with reemplazar.Tatoeba #1479225 by marcelostockle, translation #320461 by CK
- Juan necesita reemplazar su antiguo teléfono.Juan needs to replace his old phone.
- Necesito cambiar el filtro del aire acondicionado.I need to replace the air conditioning filter.
- Mi hermana quiere cambiar su vestido por otro.My sister wants to replace her dress with another one.
- Necesito reemplazar la ventana rota.I need to replace the broken window.
- ¿Puedes sustituirme en la reunión de hoy? Tengo un conflicto de horarios.Can you replace me in the meeting today? I have a schedule conflict.
- Maria reemplazó la silla vieja por una nueva.Maria replaced the old chair with a new one.
- Vamos a cambiar las piezas dañadas del coche.We are going to replace the damaged parts of the car.
- Es hora de cambiar las pilas del control remoto.It's time to replace the batteries in the remote control.
- 5 more sentences on Tatoeba
Example conversation
Daniel and Elena are in their kitchen discussing a broken appliance.
- DanielElena, ¿podemos reemplazar este microondas?Elena, can we replace this microwave?
- ElenaSí, Daniel, ya no funciona bien.Yes, Daniel, it doesn't work well anymore.
- DanielBuscaré uno nuevo en la tienda mañana.I will look for a new one at the store tomorrow.
- ElenaPerfecto, gracias por encargarte de eso.Perfect, thanks for taking care of that.
Sources
- Pronunciation: Wiktionary entry reemplazar, CC BY-SA 4.0, dump of 2026-09-26.
- Example sentences: Tatoeba CC BY 2.0 FR.