Detective (noun)

1. A person who investigates crimes and solves them.
2. A person who is employed by a company to investigate activities that might result in legal liability or loss, or damage to the company's reputation.

Origin:

Late 16th century, from french détective, from detective 'uncovering the truth', from latin detectare, from de- 'uncover' + tactus, past participle of tangere 'to touch'.

Examples:

1. The detective followed the suspect for several blocks before finally apprehending them.
2. The detective's job is to uncover the truth about what really happened.
3. The company hired a detective to investigate the theft of valuable equipment from the warehouse.
4. The detective worked tirelessly on the case, sifting through all the evidence to find the missing pieces of the puzzle.
5. She became a detective because she wanted to help people and solve crimes.