In the phrase, "a group of spectators", the noun "group" is functioning as a collective noun.
The standard collective noun is "an audience of spectators"; however, collective nouns are an informal part of language. Any noun that suits the situation can function as a collective noun.
A crowd or an audience
Tell me
A row
A crowd
Anonymous
audience
Audience
Group
they are called the gallery
Spectators, crowd or audience.
a group of Blackbirds is called a murder
A group of mules is called a barren, span or pack.
A group of bluebirds is called a flock, hermitage, or mutation.
A group of spectators are called an audience.
spectators
audience
audience
The collective noun is called a gaggle. Also spectators
A group can still be diverse in terms of characteristics such as age, gender, or background. The people attending a football game can still be considered a group based on their shared interest in the game, even if they vary in other aspects.
No. It's just the plural form of a singular noun. If you said 'a group of spectators' the word group would be a collective noun.
Male spectators in the 15/95 age group.
they are called the gallery
they are the gallery
An assembly of listeners or an assembly of spectators is use of the collective noun, assembly.
spectators