The collective noun is called a gaggle.
Also spectators
It is called an audience.
spectators
A large group of people standing together in one place. Such as in a sports stadium watching football.
They are the audience.
A group of onlookers are called a faculty
An audience is defined as a group of people watching a show. Therefore, audience participation would be defined as a group of people who participate in the show they are watching.
A group of footballers is a team off 11 men , who all go out on to a pitch to play football with the objective of scoring enough goals to win. They are called a football club...
A group with nine people is called a nonet.
A group of people is called a crowd
a group or team of intelligent people are called wath
It's called a group.
A group of people watching something like a play or sporting event.