Words similar to clue

Example sentences for: clue

How can you use “clue” in a sentence? Here are some example sentences to help you improve your vocabulary:

In 1999, plant scientists studying PTGS provided a crucial clue when they detected small (approximately 25 nucleotide-long) RNAs corresponding to silenced target genes in transgenic plants (Hamilton and Baulcombe 1999).
I could find no useful index: though there is a list of file names, they are numerical and offer no clue as to their contents.
But I often think that even Morse and Dalgliesh don't have a clue until the whole thing is revealed in the last 15 minutes.
He didn't have a clue about any Russia business.
A clue for COCK might thus come to read: number one in the pecking order dominates hens and crows (a quizzical statement, unless the word crows is read as a verb) or even: creature with a cow's head and a bullock's rump found in a coop (first letter of cow plus last three letters of bullock ).