Glacier (noun)

1. A large mass of ice that moves slowly down a slope or valley, formed from compacted snow that has accumulated over many years.
2. A slow-moving river of ice formed by the accumulation and compression of snow and ice.

Origin:

From the french word 'glacier' meaning 'ice mass or glacier'.

Examples:

1. The glacier was a breathtaking sight as it flowed down the mountain into the valley.
2. The retreating glacier has exposed new areas of land and changed the local ecosystem.
3. The glacier is a significant tourist attraction and is popular for hiking and ice climbing.
4. Glaciers play a crucial role in regulating the Earth's climate and water supply.
5. The glacier has been shrinking for several decades due to rising temperatures.