This is the 150th most frequent Dutch word.
door
The Dutch word "door" means "through" in English.
In this sentence, 'door' means 'through' and refers to the act of passing through a space.
Hij liep door de kamer.
He walked through the room.
In this case, 'door' expresses 'by' and is used to indicate the agent performing the action in a passive construction.
Deze opdracht is door Jan gedaan.
This task has been done by Jan.
Here, 'door' means 'continuing' and is used in a phrasal verb to indicate that an activity or process is proceeding.