This is the 16484th most frequent Polish word.
widzą
"Widzą" means "they see" in English.
Here, 'widzą' functions as the verb to see in the 3rd person plural present tense, describing an action they are performing.
Widzą las z okna samolotu.
They see the forest from the airplane window.
In this sentence, 'widzą' is again in the 3rd person plural form, used in a question showing habitual seeing.
Czy oni zawsze wszystko widzą?
Do they always see everything?
Here, 'widzą' introduces perception or awareness of a fact, maintaining its 3rd person plural conjugation.