Romperse vs. estropearse vs. averiarse vs. descomponerse
While romperse, estropearse, averiarse, and descomponerse can all be translated as to break down, they carry different nuances of formality, severity, and cause. Understanding these subtleties will make your Spanish sound more precise and natural.
Romperse
A2Romperse is the most common and general-purpose verb for to break. It can describe anything from a machine that stops working to an object that physically shatters. It is the go-to word in everyday, informal conversation for any kind of breakdown.
La televisión se rompió anoche y ahora no enciende.
(The television broke last night and now it won't turn on.)
Mi teléfono se cayó y la pantalla se rompió.
(My phone fell and the screen broke/cracked.)
De repente, la lavadora hizo un ruido extraño y se rompió.
(Suddenly, the washing machine made a strange noise and broke down.)
Creo que el motor del coche se rompió en medio de la autopista.
(I think the car engine broke down in the middle of the highway.)
Estropearse
B1Estropearse implies a gradual process of damage, often due to wear and tear, misuse, or deterioration over time. It suggests that something is damaged or malfunctioning but not necessarily completely broken or useless yet. It's less sudden or violent than romperse.
El aire acondicionado se estropeó por falta de mantenimiento.
(The air conditioning broke down due to lack of maintenance.)
Con tanto uso, el teclado de la computadora se estropeó.
(With so much use, the computer's keyboard got damaged.)
La impresora se ha estropeado y ahora imprime con manchas.
(The printer has malfunctioned and now it prints with smudges.)
Si no cuidas tus herramientas, se van a estropear muy rápido.
(If you don't take care of your tools, they are going to get ruined very quickly.)
Averiarse
B2Averiarse is a more formal and technical term used almost exclusively for machines, vehicles, and complex systems. It refers specifically to a technical fault or breakdown (an avería). This is the word a mechanic, technician, or a news report would likely use.
El tren se averió y quedamos parados dos horas en el túnel.
(The train broke down and we were stuck for two hours in the tunnel.)
El ascensor del edificio se averió por un fallo eléctrico.
(The building's elevator had a breakdown due to an electrical failure.)
Según el técnico, la caldera se averió por una sobrecarga.
(According to the technician, the boiler broke down because of an overload.)
La maquinaria principal de la fábrica se averió, parando toda la producción.
(The factory's main machinery broke down, halting all production.)
Descomponerse
B2Descomponerse literally means to de-compose or to come apart. For machines, it suggests a more complex internal failure where the components no longer work together correctly. It often implies a more serious or intricate breakdown than romperse.
El motor del frigorífico se descompuso y dejó de enfriar.
(The refrigerator's motor broke down and it stopped cooling.)
El complejo mecanismo del viejo reloj se descompuso.
(The old clock's complex mechanism broke down.)
Se descompuso el disco duro de mi ordenador y perdí todos los archivos.
(My computer's hard drive failed and I lost all my files.)
El coche se descompuso en la carretera y empezó a salir humo del capó.
(The car broke down on the road and smoke started to come out of the hood.)
Summary
In short: romperse is your everyday, all-purpose word for to break. Estropearse suggests a gradual malfunction from wear and tear. Averiarse is a more formal, technical term for a breakdown in machinery or vehicles. Descomponerse implies a complex internal failure where the components of a system stop working together.