This is the 699th most frequent Catalan word.
recorden
"Recorden" means "they remember" in English.
Here, 'recorden' is used in the present tense to indicate action taking place now, meaning 'to remember'.
Els estudiants recorden la lliçó que van aprendre.
The students remember the lesson they learned.
In this sentence, 'es recorden' is reflexive and indicates the act of recalling something, showing a personal connection to the memory.
Cada vegada que veuen una foto, es recorden de l'ocell blau.
Every time they see a photo, they recall the blue bird.
In this context, 'recorden' in the present tense is used to mean 'to remind', referring to the act of reminding someone about something.