spectator

As nouns the difference between spectator and speculator

is that spectator is one who observes an event; an observer while speculator is one who speculates; an observer; a contemplator.

As a noun spectator

is one who observes an event; an observer.

As a verb sightsees is

(sightsee).

As nouns the difference between ambulatory and spectator

is that ambulatory is the round walkway encircling the altar in many cathedrals while spectator is one who observes an event; an observer.

As an adjective ambulatory

is of, relating to, or adapted to walking.

As nouns the difference between spectator and spectacle

is that spectator is one who observes an event; an observer while spectacle is something exhibited to view; usually, something presented to view as extraordinary, or as unusual and worthy of special notice; a remarkable or noteworthy sight; a show; a pageant.

As nouns the difference between spectator and sightseer

is that spectator is one who observes an event; an observer while sightseer is one who goes sightseeing; one who goes around to look at sights or see things of interest; a tourist.

As nouns the difference between referee and spectator

is that referee is an umpire or judge; the official who makes sure the rules are followed during a game while spectator is one who observes an event; an observer.

As a verb referee

is to act as a referee.

As nouns the difference between spectator and gallery

is that spectator is one who observes an event; an observer while gallery is an institution, building, or room for the exhibition and conservation of works of art.

As nouns the difference between spectator and audition

is that spectator is one who observes an event; an observer while audition is a performance, by an aspiring performer, to demonstrate suitability or talent.

As a verb audition is

to evaluate one or more performers in through an audition.

As nouns the difference between spectator and outsider

is that spectator is one who observes an event; an observer while outsider is one who is not part of a community or organization.

As nouns the difference between spectator and audion

is that spectator is one who observes an event; an observer while audion is an early electronic amplifying tube consisting of a partially evacuated glass tube with three electrodes, a heated filament, a grid, and a plate.