Word forms: plural plateaus, plural plateaux, 3rd person singular presenttense plateaus, present participle plateauing, past tense, past participle plateaued
1. countable noun
A plateau is a large area of high and fairly flat land.
A broad valley opened up leading to a high, flat plateau of cultivated land.
Synonyms: upland, table, highland, mesa More Synonyms of plateau
2. countable noun
If you say that an activity or process has reached a plateau, you mean that it has reached a stage where there is no further change or development.
The U.S. heroin market now appears to have reached a plateau.
I think the economy is stuck on a kind of plateau of slow growth.
Synonyms: levelling off, level, stage, stability More Synonyms of plateau
3. verb
If something such as an activity, process, or cost plateaus or plateaus out, it reaches a stage where there is no further change or development.
Evelyn's career is accelerating, and mine is plateauing out a bit. [Vout]
The shares plateaued at 153p. [VERB + at]
plateau in British English
(ˈplætəʊ)
nounWord forms: plural-eaus or -eaux (-əʊz)
1.
a wide mainly level area of elevated land
2.
a relatively long period of stability; levelling off
the rising prices reached a plateau
verb(intransitive)
3.
to remain at a stable level for a relatively long period
Word origin
C18: from French, from Old French platel something flat, from plat flat; see plate
Plateau in British English
(ˈplætəʊ)
noun
a state of central Nigeria, formed in 1976 from part of Benue-Plateau State: tin mining. Capital: Jos. Pop: 3 178 712 (2006). Area: 30 913 sq km (11 936 sq miles)
plateau in American English
(plæˈtoʊ)
nounWord forms: pluralplaˈteaus or plaˈteaux (plæˈtoʊz)
1.
an elevated tract of more or less level land; tableland; mesa
2.
a period, level, etc. of relative stability, or relatively little change, as can be shown by a flat extent on a graph, etc.; specif., a period in which an individual's learning rate does not improve
verb intransitive
3.
to become relatively stable or constant, as in position
A thousand feet below the airship lay the South Polar plateau.
Davis, John Gordon SEIZE THE RECKLESS WIND (2004)
They moved closer to the steaming mountain and up on to a plateau of black and grey scalded soil.
O'Connor, Joe DESPERADOES (2004)
As we approached a plateau, the drumbeats grew louder and louder.
Preethi Nair GYPSY MASALA (2004)
In other languages
plateau
British English: plateau NOUN
A plateau is a large area of high and fairly flat land.
A broad valley opened up leading to a high, flat plateau of cultivated land.
American English: plateau
Brazilian Portuguese: planalto
Chinese: 高原
European Spanish: meseta
French: plateau
German: Hochebene
Italian: altopiano
Japanese: 高原
Korean: 고원
European Portuguese: planalto
Latin American Spanish: meseta
All related terms of 'plateau'
Jos Plateau
→ the Jos Plateau
Ozark Plateau
an eroded plateau in S Missouri, N Arkansas , and NE Oklahoma . Area: about 130 000 sq km (50 000 sq miles)
Deccan Plateau
triangular tableland occupying most of the peninsula of India, between the Eastern Ghats & Western Ghats & south of the Narbada River
Langres Plateau
a calcareous plateau of E France north of Dijon between the Seine and the Saône, reaching over 580 m (1900 ft): forms a watershed between rivers flowing to the Mediterranean and to the English Channel
Cumberland Plateau
division of the W Appalachians, extending from S W.Va. to N Ala.
Laurentian Plateau
(in Canada ) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic : rich in minerals
the Jos Plateau
a plateau in Nigeria with an average altitude of 1280 metres