Question

what is the defination of collective noun in English​

Answer 1

In linguistics, a collective noun is a word referring to a collection of things taken as a whole. Most collective nouns in everyday speech are not specific to one kind of thing, such as the word "group", which can be applied to people or dogs or other things.

....

Answer 2

A group of nouns is called collective noun.

EXAMPLE:

A shoal of fish

A packet of biscuits

HOPE IT HELPS!!