The expression "lay finger on" is quite straightforward when it comes to spelling. The word "lay" is spelled as it sounds, with the long "a" sound at the beginning, and the "y" acting as a consonant. The word "finger" follows basic English vowel sounds, with the short "i" sound in the first syllable and the "er" sound in the second syllable. "On" is also spelled phonetically, with the long "o" sound and the "n" sound at the end. All together, the IPA transcription of "lay finger on" is /leɪ ˈfɪŋɡər ɒn/.
"Lay finger on" is an idiomatic expression that means to find or locate something or someone, especially after a search or inquiry. It implies to physically come into contact with or identify the wanted object or person. This phrase is often used to describe the act of discovering or apprehending someone who is elusive, wanted, or missing.
The phrase has its origins in the literal sense of laying a finger on something, which conveys the ideas of touching, reaching or grasping an object. However, in its idiomatic usage, it goes beyond literal physical contact to refer more broadly to the successful effort of locating or tracking down someone or something.
The expression is typically employed in situations where someone is actively seeking or pursuing a particular thing, whether it is information, a lost object, or a fugitive. It emphasizes the difficulty or elusiveness of the search, indicating a sense of accomplishment or satisfaction when the sought-after item is finally found or when the person is apprehended.
Overall, "lay finger on" refers to the success in finding or apprehending something or someone elusive or hard to locate, often following a persistent and diligent search or inquiry. This phrase captures the act of getting hold of or discovering something that is sought, and conveys a sense of achievement or triumph.