IPA: /ˈaɪhoʊl/
KK: /ˈaɪhoʊl/
A small opening or hole that allows someone to see through, often used in doors or masks.
He looked through the eyehole of the mask to see who was outside.
Eyehole → The word is formed from "eye" (from Old English "ēage", meaning the organ of sight) and "hole" (from Old English "hol", meaning a hollow place or opening). An eyehole refers to an opening or hole for the eye.
Think of the 'eye' as the organ of sight and 'hole' as an opening — together, they create the idea of an opening for the eye.