What is the use of word examination in a sentence?

The use of the word "examination" depends on the context, but generally it refers to a thorough inspection or investigation. Here are a few examples demonstrating its use:

* Medical context: "The doctor ordered a blood examination to check for infection." (Here, it means a medical test.)

* Academic context: "The final examination will cover all the material from the semester." (Here, it refers to a test assessing knowledge.)

* Legal context: "The police conducted a thorough examination of the crime scene." (Here, it means a careful investigation.)

* General context: "A close examination of the painting revealed a hidden signature." (Here, it means a detailed scrutiny.)

In short, "examination" implies a systematic and careful process of looking at something to understand it better, whether it's a physical object, a medical condition, or a student's knowledge.