1. a value or quantity that is close to but not exactly accurate or correct
2. something that is similar to but not exactly the same as something else
3. the process of estimating or calculating a value that is close to the actual amount

Examples

• The scientist’s approximation of the distance was within 5% of the actual measurement.
• This recipe serves 8 people, but that’s just an approximation.
• The architect created an approximation of the ancient temple using modern materials.
• Her approximation of the total cost helped us plan our budget.
• The weather forecast is only an approximation of what might happen.
• Using approximation methods, we can solve complex math problems more quickly.
• The painting was a close approximation of the original masterpiece.