mountain

1. An elevation of land of considerable dimensions rising more or less abruptly, forming a conspicuous figure in the landscape, usually having a small extent of surface at its summit. (countable) · Everest is the highest mountain in the world.· We spent the weekend hiking in the mountains.
2. Something very large in size or quantity; a huge amount; a great heap. (countable) · He was a real mountain of a man, standing seven feet tall.· There's still a mountain of work to do.
3. A difficult task or challenge. (countable, figuratively, uncountable)
4. Wine from Malaga made from grapes that grow on a mountain. (uncountable)
5. A woman's large breast. (countable, slang)
6. The twenty-first Lenormand card. (countable, uncountable)

Plural mountains