1. things that can change or be changed; factors that are not constant
2. symbols or letters in mathematics that represent unknown or changeable quantities
Usage: mathematics
3. data storage locations in computer programming that can hold different values
Usage: computing

Examples

• The scientist controlled all variables except temperature in the experiment.
• Weather conditions are important variables in agricultural planning.
• In the equation y = 2x + 3, both x and y are variables.
• The programmer declared several variables to store user input.
• Economic variables like inflation affect consumer spending.
• The teacher explained how to solve for variables in algebra.
• Multiple variables contributed to the project’s success.