noun

The noun form of the word "approximation" means "an estimate or a value that is close to the actual value but not exact". It refers to a value or an estimated value that is very close to the true value but not an exact match. In fields such as mathematics and science, approximate solutions are often sought when it is difficult to obtain an exact analytical solution. In such cases, approximate solutions are very useful as they provide an approximate solution to the original problem.

Example

1. It's a rough approximation, but it should be close enough.
2. The estimate she gave us was only an approximation.
3. His approximation of the answer was surprisingly accurate.