the Oval Office

:  an oval figure or object

:  a racetrack in the shape of an oval or a rectangle having rounded corners

:  having the shape of an egg

:  broadly elliptical

:  a special duty, charge, or position conferred by an exercise of governmental authority and for a public purpose :  a position of authority to exercise a public function and to receive whatever emoluments may belong to it

:  a position of responsibility or some degree of executive authority

:  a prescribed form or service of worship