This is the 956th most frequent Catalan word.
son
"Son" in Catalan means "sleep."
Here, 'son' is used as a noun meaning 'sleepiness' or 'drowsiness'.
La son no em deixa concentrar-me aquest matí.
Sleepiness doesn't let me concentrate this morning.
In this sentence, 'són' is the verb 'ser' ('to be') in the third person plural form.
Ells són els meus amics i sempre em donen suport.
They are my friends and always support me.
Here, 'són' is a Catalan noun meaning 'sound'.