What context can I use each word in?
Learn when and how to use these words with these examples!
equation
Example
The quadratic equation is a fundamental concept in algebra. [equation: noun]
Example
We need to find the equation that balances the budget for this project. [equation: noun]
identity
Example
The identity matrix is a special matrix in linear algebra. [identity: noun]
Example
She struggled with her identity after moving to a new country. [identity: noun]
Example
The stripes on a zebra are a unique identifying feature. [identifying: gerund or present participle]
Good things to know
Which word is more common?
Equation is more commonly used than identity in everyday language, especially in scientific and technical contexts. Identity is a more specialized term that is mainly used in mathematics.
What’s the difference in the tone of formality between equation and identity?
Equation is generally considered a formal term, while identity can be used in both formal and informal contexts, especially when referring to personal or emotional associations.
