What context can I use each word in?
Learn when and how to use these words with these examples!
dilation
Example
The doctor used eye drops to induce dilation of the patient's pupils. [dilation: noun]
Example
The metal pipe underwent dilation when heated. [dilation: noun]
expansion
Example
The company is planning an expansion of its operations to other countries. [expansion: noun]
Example
The teacher encouraged the students to think beyond the textbook and explore the expansion of their knowledge. [expansion: noun]
Good things to know
Which word is more common?
Expansion is more commonly used than dilation in everyday language, especially in business or social contexts. Dilation is more technical and specific, and is commonly used in medical or scientific contexts.
What’s the difference in the tone of formality between dilation and expansion?
Dilation is typically associated with a formal and technical tone, while expansion can be used in both formal and informal contexts, allowing it to be employed in a wider range of situations.
