Thief is a noun that refers to a person who steals another person's property, especially by stealth and without using force or violence.
The term "thief" can be used in various contexts:
1. A petty thief - someone who steals small items
2. A car thief - someone who steals vehicles
3. A jewel thief - someone who specializes in stealing jewelry
4. A cyber thief - someone who commits theft in the digital realm