This is the 58th most frequent Catalan word.
passat
"Passat" in Catalan means "past" in English.
Here, 'passat' is an adjective describing summer, meaning 'last' or 'previous.'
El passat estiu va fer molta calor.
Last summer it was very hot.
Here, 'passat' is part of the verb phrase 'he passat,' which means 'I have passed,' from the verb 'passar,' conjugated in the present perfect tense.
He passat per davant de casa teva avui.
I passed by your house today.
Here, 'passat' is a noun referring to the historical past.