IPA: /bɪˈhoʊldər/
KK: /bɪˈhoʊldər/
A person who looks at or observes something, often used in the context of art or beauty.
The painting was admired by every beholder who visited the gallery.
Beholder is formed from "be-" (meaning to have or to hold) and "hold" (meaning to grasp or maintain). The word "beholder" refers to someone who holds or possesses a view or perception of something.
Think of someone who 'holds' ('hold') a view or perception — that's why a beholder is someone who sees or observes.