IPA: /ˈpɪn.hoʊl/
KK: /ˈpɪnhoʊl/
A very small hole that is made by a pin or similar object.
The camera uses a pinhole to capture images without a lens.
Pinhole → It is formed from "pin" (from Old English "pinn", meaning a small pointed object) and "hole" (from Old English "hol", meaning an opening or cavity). The word "pinhole" refers to a very small opening made by a pin.
Think of a small pointed object ('pin') creating a tiny opening ('hole') — that's what a pinhole is.