What context can I use each word in?
Learn when and how to use these words with these examples!
expansion
Example
The company is planning an expansion of its operations to reach new markets. [expansion: noun]
Example
The teacher asked the students to write an essay on the expansion of the universe. [expansion: noun]
extension
Example
The builder added an extension to the house to create more living space. [extension: noun]
Example
The professor granted an extension on the deadline for the research paper. [extension: noun]
Good things to know
Which word is more common?
Extension is more commonly used than expansion in everyday language. Extension is versatile and covers a wide range of contexts, while expansion is less common and often used in specific contexts, such as business or economics.
What’s the difference in the tone of formality between expansion and extension?
Both expansion and extension can be used in formal and informal contexts, but expansion may be more formal due to its association with business and economics.
