WordNet: looker, spectator, viewer, watcher, witness

a close observer; someone who looks at something (such as an exhibition of some kind); "the spectators applauded the performance"; "television viewers"; "sky watchers discovered a new star"

• hypernym beholder, observer, perceiver, percipient

• hyponym browser

• hyponym bystander

• hyponym cheerer

• hyponym eyewitness

• hyponym gawker

• hyponym motion-picture fan, moviegoer

• hyponym ogler

• hyponym looker-on, onlooker

• hyponym playgoer, theatergoer, theatregoer

• hyponym rubberneck, rubbernecker

• hyponym spy

• hyponym starer

• hyponym Peeping Tom, peeper, voyeur

looker

• (englanti) look (derivationally related)
• (suomi) katselija (synonyymi)

spectator

• (englanti) spectate (derivationally related)
• (suomi) katsoja (synonyymi)

viewer

• (englanti) view (derivationally related)
• (suomi) katselija (synonyymi)

watcher

• (englanti) watch (derivationally related)

• (englanti) watch (derivationally related)
• (suomi) tarkkailija (synonyymi)

witness

• (englanti) witness (derivationally related)
• (suomi) silminnäkijä (synonyymi)