The detective used his keen observation to solve the mystery.

Meaning: The detective was able to find the answer to the mystery because he was paying close attention and noticing things that others might have missed.

Choice of Words: Keen means sharp or strong, while observation refers to the act of paying attention and noticing things. Solve means to find an answer or solution to a problem.

Alternative Expressions

Related Expressions

• The clever detective solved the puzzling mystery with keen observation.
• The detective's keen observation and logical reasoning solved the perplexing mystery.
• The detective solved the mystery with keen observation.
• The clever detective solved the mysterious case with keen observation.
• The clever detective solved the mystery with careful observation.
• The clever detective solved the puzzling mystery with careful observation.
• The detective followed the clues diligently, determined to solve the mystery.
• Detective's sharp observation solved the puzzle.
• The detective's sharp mind and keen eye helped him crack the case.
• The detective's keen eyes scanned the room, searching for clues.