English Reference
noun

plateau

n.
US /pɫæˈtoʊ/ UK /plˈætəʊ/ plateau UK spelling plateau's, plateau's, plateaued, plateauing

  1. 01 B2 Upper Intermediate

    a large area of flat land that is high above sea level.

    an extensive area of relatively level high ground; a tableland.

    Simple

    The hikers finally reached the plateau and could see for miles across the flat ground.

    In context

    The Tibetan Plateau is often referred to as the Roof of the World due to its immense elevation and vast scale.

    tablelandmesahighland
    valleylowland
  2. 02 B2 Upper Intermediate

    a time when something stops increasing or improving after it has been growing.

    a state of little or no change following a period of activity or progress.

    Simple

    After losing ten pounds quickly, my weight reached a plateau and stayed the same for weeks.

    In context

    The company's stock price hit a plateau in the third quarter as investors waited for news of the new product launch.

    leveling offstagnationstability
  3. 03 C2 Proficiency ArchaicFormal

    a decorative tray or dish used for holding items on a table.

    an ornamental dish or tray for the table, typically used in formal settings.

    Simple

    The silver plateau held a variety of expensive fruits at the center of the dining table.

    In context

    The museum's collection includes a gilded bronze plateau from the Napoleonic era, designed to reflect candlelight during state banquets.

    traysalverplatter

The Meseta Central, Spain’s huge central plateau acts like a high-altitude semi-desert.

The Local· 14 Aug 2026

The views provide a close look at the Chajnantor plateau within the Altiplano-Puna volcanic complex.

ScienceDaily· 1 Sept 2026
This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated