This is the 693rd most frequent Catalan word.
pluja
Rain.
Here, 'pluja' is used as a noun to denote the meteorological event of rain.
La pluja és un fenomen meteorològic fascinant.
Rain is a fascinating weather phenomenon.
In this sentence, 'pluja' is indirectly referenced as part of the weather conditions implying the action of raining (ploure).
Hem de portar el paraigua en cas que comenci a ploure.
We must bring the umbrella in case it starts to rain.
Here, 'pluja' is used as a noun referring to an occurrence of rain affecting the environment.