This is the 3573rd most frequent Turkish word.
seyirci
"Spectator" or "audience."
Here, 'seyirci' is used to describe a person who is part of the audience attending a theater event.
Tiyatroda seyirci olmak çok keyifli.
Being an audience member at the theater is very enjoyable.
In this sentence, 'seyirciler' (plural form) refers to spectators at a sports event.
Maçta seyirciler takımlarını destekliyordu.
At the match, the audience was supporting their teams.
Here, 'seyirci' metaphorically refers to feeling like an outsider or observer during the context mentioned.