[plaˈtəʊ], (Noun)

Definitions:
- an area of fairly level high ground

- a state of little or no change following a period of activity or progress
(e.g: the peace process had reached a plateau)


Phrases:

Origin:
mid 18th century: French, from plat ‘level’

[plaˈtəʊ], (Verb)

Definitions:
- reach a state of little or no change after a period of activity or progress
(e.g: the industry's problems have plateaued out)


Phrases:

Origin:
mid 18th century: French, from plat ‘level’