Test
In short
A test is a procedure used to measure the quality, performance, or reliability of something.
In plain words
It is a way to check if something works correctly. You follow specific steps to see if the result matches what you expected.
A simple example
A teacher gives a maths exam to see how much students have learned. If the students pass, it proves they understood the lessons.
Why it matters
Testing helps find mistakes before they cause big problems. It ensures that products, software, and people are safe and ready for use.
Easy to mix up
It is often confused with an experiment, which is used to discover new things rather than just checking known facts.