Meaning of PLATEAU in English

I. pla-ˈtō, ˈpla-ˌ noun

( plural plateaus or pla·teaux -ˈtōz, -ˌtōz)

Etymology: French, from Middle French, platter, from plat flat

Date: 1796


a. : a usually extensive land area having a relatively level surface raised sharply above adjacent land on at least one side : tableland

b. : a similar undersea feature


a. : a region of little or no change in a graphic representation

b. : a relatively stable level, period, or condition

3. : a level of attainment or achievement

the 500-point plateau

II. intransitive verb

Date: 1939

: to reach a level, period, or condition of stability or maximum attainment

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.