La porte!

(une) porte = a door (pronounced as it's written)

Expressions using "porte":
Prendre la porte = to leave (literally: to take the door)
Entrer par la petite/grande porte = to start at the bottom/top (literally: to enter by the small/large door)
Enfoncer une porte ouverte = to state the obvious (literally: to knock down an open door)
Il faut qu'une porte soit ouverte ou fermée = you've got to decide one way or the other (literally: a door has to be either open or closed)