This is the 4389th most frequent Spanish word.
tren
"Tren" in English means "train."
In this sentence, the word 'tren' is used to refer to a mode of transportation, specifically a train.
El tren llegó a la estación a tiempo.
The train arrived at the station on time.
Here, 'tren' is metaphorically used to describe a series or sequence of connected ideas or reasoning.
Su tren de pensamiento era difícil de seguir.
Their train of thought was difficult to follow.
In this context, 'tren' symbolically represents a sequence or opportunity that one can join or take advantage of.