Oblong
Part of speech: noun
Definition: Something with an oblong shape. A rectangle having length greater than width.
Part of speech: adjective
Definition: Describing something that is longer than it is wide. Roughly rectangular or ellipsoidal.
Oval
Part of speech: noun
Definition: A shape rather like an egg or an ellipse.A sporting arena etc. of this shape.
Part of speech: adjective
Definition: Having the shape of an oval.
Example sentence: Mr. Trump, Americans can't afford, and don't want, to worry about the latest lawsuit filed against their president. And you're not immune from these suits once you enter the Oval Office. Anything you've done before taking office is fair game.