This is the 10937th most frequent Catalan word.
sec
"Sec" in Catalan means "dry" in English.
In this case, 'sec' is used metaphorically to describe a style of humor that is subtle or lacking overt expression, often referred to as dry humor.
El meu humor és sec quan estic cansat.
My humor is dry when I'm tired.
In this sentence, 'sec' is used as an adjective to describe a literal physical characteristic; specifically, the dryness of the bread.
Aquest pa és sec.
This bread is dry.
Here, 'sec' describes the dryness of the weather, indicating conditions with low humidity.