Ball. A ball of wool.
Bale.
bale
Collective nouns for wool are a bale of wool or a skein of wool.
A bale of wool. Or a skein of wool.
The word 'wool' is a noun, a common, concrete, non-count noun. The word 'ball' is a noun, a singular common, concrete noun. The noun ball is also a collective noun: a ball of wool; a ball of string; a ball of wax, etc. The word 'of' is a preposition; the noun wool is the object of the preposition.
There is no specific collective noun for the noun balls, in which case a noun suitable for the situation can be used, such as a basket of balls, a rack of balls, a row of balls, etc.
Shoal is a collective noun. It is the collective noun for fish. A shoal of fish.The collective noun is a mint of candies
No, the noun farm is not a collective noun.
No it is not a collective noun.
There is no standard collective noun for a group of reflections. The noun 'reflection' is not a standard collective noun.
No, the noun lumber is not used as a collective noun. The collective noun for lumber is a stack of lumber.
The collective noun is a series of explosions.
No, games is not a collective noun. The collective noun for games is 'a compendium of games'.
The collective noun is an anthology of poetry.