Английский разговорный словарь (основной) - plateau
Plateau
plateau
ˈplætəu n. & v. --n. (pl. plateaux or plateaus) 1 an area of fairlylevelhigh ground. 2 a state of littlevariationafter an increase. --v.intr. (plateaus, plateaued) (often foll. by out) reach a level or stable state after an increase. [F f. OF platel dimin. of plat flat surface]