useful clue

Examples (10)

• The detective found a useful clue at the crime scene.
• The unexpected experimental result provided a useful clue for their research.
• His friend's comment gave him a useful clue about what to buy for her birthday.
• The ancient manuscript contained a useful clue to the location of the lost city.
• Did you find any useful clues in the documents I sent over?
• I hope the witness's testimony will provide a useful clue to the investigators.
• If we can decipher this code, it might be a very useful clue.
• A useful clue was discovered hidden inside the old book.
• The recurring dream offered a useful clue to understanding his anxiety.
• The fossil record provides a useful clue about the evolution of species.