Wiktionary
vb. (context idiomatic English) To identify, specify, name or pick out (usually negative)
Usage examples of "put one's finger on".
Nothing that one could put one's finger on, he decided, just something you feel.
It was indeed the only one of the many structures that betrayed any sign of activity about it, though this was more a sublimal impression than anything one could put one's finger on.
It was indeed the only one of the many structure s that betrayed any sign of activity about it, though this was more a sublimal impression than anything one could put one's finger on.
Marine Corps' near-sacred tradition that one does not put one's finger on the trigger of a loaded firearm until one is prepared to fire, he took it in his hand, the trigger finger extended along the slide rather than on the trigger, and flicked the safety off.
There is a certain looking over the shoulder that I detect-though it is hard to put one's finger on-and what might be a tremulous secret listening.