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volcano

/vɒlˈkeɪnəʊ/noun

A mountain or hill with an opening at the top through which hot melted rock, ash, and gas sometimes burst out.

Example sentences

  • “The volcano erupted, sending ash high into the sky.”
  • “The island of Hawaii has several active volcanoes.”
  • “We hiked to the edge of an old volcano.”

Volcanoes 'erupt'; one that may erupt again is 'active', and one that is quiet for now is 'dormant'. The plural is usually 'volcanoes'.

nature

Related words

glacierA huge mass of ice that moves slowly downhill under its own weight.sunriseThe moment in the morning when the sun rises above the horizon in the east.jungleA dense, hot, wild forest in tropical areas, filled with untamed plants and animals.sunsetThe time in the evening when the sun drops below the horizon in the west.swampAn area of soft, waterlogged ground, often wooded, that supports rich wildlife but is poor for farming.climateThe usual weather conditions of a place over a long period of time.