doo

As nouns the difference between door and doo

is that door is a {{l/en|portal}} of entry into a building, room or vehicle, consisting of a rigid plane movable on a {{l/en|hinge}}. Doors are frequently made of {{l/en|wood}} or {{l/en|metal}}. May have a {{l/en|handle}} to help open and close, a {{l/en|latch}} to hold the door closed, and a {{l/en|lock}} that ensures the door cannot be opened without the key while doo is feces.

As a verb door

is to cause a {{l/en|collision}} by opening the door of a vehicle in front of an {{l/en|oncoming}} {{l/en|cyclist}} or {{l/en|pedestrian}}.

As an interjection doo is

Used as a scat word in song lyrics.