What context can I use each word in?
Learn when and how to use these words with these examples!
vallis
Example
The vallis on Mars is evidence of past water flow on the planet. [vallis: noun]
Example
Scientists believe that the vallis on the moon was created by volcanic activity. [vallis: noun]
valley
Example
The Yosemite Valley in California is a popular tourist destination. [valley: noun]
Example
The river flows through the valley, providing water for the surrounding farms. [valley: noun]
Good things to know
Which word is more common?
Valley is a more commonly used term than vallis in everyday language, as it is a familiar feature on Earth. Vallis is a more specialized term used mainly in scientific contexts.
What’s the difference in the tone of formality between vallis and valley?
Vallis is a more formal term than valley, as it is a technical term used mainly in scientific contexts. Valley is a versatile term that can be used in both formal and informal contexts.
