This is the 2034th most frequent Catalan word.
érem
"Érem" means "we were" in English.
The word 'érem' here functions as the first person plural of the imperfect tense of the verb 'ser', indicating a past continuous action or state (we were).
Érem a la platja quan va començar a ploure.
We were at the beach when it started to rain.
In this sentence, 'érem' describes a continuous or habitual state in the past, referring to our childhood.
Quan érem petits, jugàvem molt al parc.
When we were little, we used to play a lot in the park.
Here, 'érem' refers to a past state of being (friendship) prior to a specific event.