1. A detective or investigator, especially one known for keen observation and deductive reasoning (often capitalized as a reference to Sherlock Holmes)
Usage: Often used informally or humorously to refer to someone who solves mysteries or investigates problems; May be capitalized when referring to the fictional character Sherlock Holmes

Examples

• She played the role of a modern-day holmes in the mystery novel.
• The detective was called a holmes for solving the case so quickly.
• Sherlock Holmes is the most famous fictional detective in literature.
• He fancied himself a holmes, examining every clue at the crime scene.
• The young holmes used logic and observation to crack the case.