Private eyes, also known as detectives, are individuals who investigate and solve crimes. They are often hired by private citizens or organizations to look into matters that require discretion. The term 'private eye' can refer to four different job titles: TECS (4 letters), which stands for Technical Surveillance Countermeasures Specialists; SLEUTHS (7 letters), which is a slang term for detectives; SHAMUSES (8 letters), which is another slang term for detectives; and SNOOPERS (8 letters), which refers to people who investigate by gathering information.