noun A person who steals, especially secretly or without open force; a robber or a burglar.
A person who is convicted of stealing or committing theft
A person who commits theft, a criminal act of taking someone else's property without permission
A person who steals merchandise from a store without paying for it, also known as a shoplifter
A person who engages in online theft, such as hacking or phishing for personal information or financial data
A person who poses a threat to the safety and security of a property or organization by stealing or attempting to steal
The term 'thief' can be used in a metaphorical sense by writers to describe someone who steals ideas or concepts from others without giving credit.
Psychologists may use the term 'thief' in the context of discussing kleptomania, a mental health disorder characterized by a compulsion to steal.