This is the 17325th most frequent Polish word.
zamykać
"Zamykać" means "to close."
The verb 'zamykać' is used in the present tense here, indicating the action of closing is currently ongoing.
Mama zamyka drzwi.
Mom is closing the doors.
This usage of 'zamykać' demonstrates a habitual action that happens regularly.
Codziennie wieczorem zamykam okno.
Every evening I close the window.
Here, 'zamykać' is used in an impersonal construction with 'nie wolno', indicating a prohibition.