Collective Nouns

It's a colony of ants or a nest of ants. If we say an ants' colony, or ants' nest, it's the place where they live.

marie

There is no standard collective noun for a group of reflections.

The noun 'reflection' is not a standard collective noun.

The noun 'choir' is a collective noun for: a choir of singers.

The noun 'crowd' is a standard collective noun for a crowd of people, a crowd of onlookers.

I believe that word is 'litter'.

proper

No. A battalion is a collection of soldiers, or the physical sum of the soldiers and their equipment.

All we know is that he was a Greek man of great strength.

The noun sheet is a countable noun. The plural form is sheets.

As it is the name for a specific thing, it is a proper noun.

The standard collective noun is: an audience of listeners