Train – el tren
(Pronounced tren (the 'en' is the same as 'then'))
To remember that train is pronounced tren (tren) in Spanish, use the following mnemonic:
The train came off the track and caused a huge trench (tren).

Tren is masculine, so it’s el tren. Imagine an elephant crossing a railway line just as a train comes:

Examples of tren (train) in a sentence
El tren llega a las ocho de la mañana.
(The train arrives at eight in the morning.)
Perdí el tren por llegar tarde.
(I missed the train because I arrived late.)
El tren a Madrid sale desde el andén tres.
(The train to Madrid departs from platform three.)