An elevation of land lower than a mountain?

Look I don't care but I need someone to find the definition of this Word. I am very unhappy and I really am just wasting my time. Ive been trying to find this definition for a while so someone please try to find it now and then I will be very happy. Everybody will get along with me too and then I will have tons of friends. You might be Say oh my gosh why did they waste their time doing this but I'm not wasting my time and who ever says that i really don't care. Thanks for listening to me bye besties. Love yaw