The word ‘ravine’ means a valley. A ravine is a narrow and steep-sided valley that is usually formed by the erosion of water flowing down the sides of a hill or mountain. It is often characterized by its deep and rugged appearance, with steep cliffs or slopes on either side.

Key Points:
- Ravine is a narrow and steep-sided valley.
- It is formed by the erosion of water flowing down the sides of a hill or mountain.
- It is characterized by its deep and rugged appearance.
- It often has steep cliffs or slopes on either side.

Erosion and Formation:
Ravines are typically formed by the erosive action of water over a long period of time. When rainwater or melted snow flows down the sides of a hill or mountain, it gradually erodes the soil and rock, creating a channel or depression. Over time, this channel deepens and widens, forming a ravine.

Characteristics:
Ravines are usually narrow, with steep sides that can be several hundred feet deep. The walls of a ravine are often composed of exposed rock faces or soil that has been eroded away, creating a rugged and uneven appearance. The bottom of a ravine is often occupied by a small stream or river, which continues the erosive process and can further deepen the valley.

Comparison to Other Landforms:
While a ravine is similar to a valley in that they are both low-lying areas between higher elevations, there are some differences between the two. A valley is generally broader and wider than a ravine, with a more gradual slope. In contrast, a ravine is narrower and steeper, with more abrupt changes in elevation.

Conclusion:
In summary, the word ‘ravine’ refers to a narrow and steep-sided valley that is formed by the erosive action of water. It is characterized by its deep and rugged appearance, with steep cliffs or slopes on either side. Understanding the meaning of this word helps us describe and identify specific landforms in nature.