mountain a very high hill:
the highest mountain in Austria
hill an area of land that is higher than the land around it, which is like a mountain but smaller and usually has a rounded top:
We went for a walk in the hills.
The house is surrounded by woods, farmland and gentle hills.
Mount (also Mt written abbreviation) used in the names of mountains. Don’t say ‘Fuji Mountain’ – say ‘Mount Fuji’:
Mount Everest
cliff the steep side of an area of land, often next to the sea:
the white cliffs of Dover
precipice especially literary a very steep and dangerous cliff:
They were standing on the edge of a precipice.
crag a high steep rock or mountain:
An eagle sailed over the high crags.
ridge a long narrow area of high ground, especially at the top of a mountain:
I could see a group of climbers high up on a ridge.
knoll a small round hill:
a grassy knoll
volcano a mountain with a large hole at the top, through which lava (=hot liquid rock) is sometimes forced out:
the eruption of a volcano
summit the very highest point of a mountain:
the summit of Mt Everest
peak especially literary the top of a mountain:
the snow-covered peaks of the Himalayas
a distant peak
range/chain a group of mountains or hills arranged in a line:
the mountain range that is part of the border between Norway and Sweden
foothills a group of smaller hills below a range of high mountains:
the Sierra foothills

[TahlilGaran] English Thesaurus ▲