The same terms would apply as for a group of surface ships. So you could refer to a submarine fleet, although that term describes the largest group available (so you could refer to the 'US submarine fleet' as all the subs America operates).
For a mid-sized group, you could use 'flotilla', or for a few boats the word 'squadron' is sometimes used.
(Note that in naval use these terms will have specific meanings, but for colloquial use amongst civilians they should be fine.)
The collective noun is a drift of icebergs.
No, the noun 'kin' is not a collective noun.
A collective noun is a word used to group people or things taken together as one whole. The noun 'salvation' is not commonly a collective noun. However, if a noun such as 'salvation' suits the context of a situation, it can be used as a collective noun. A collective noun is considered a collective noun as a function, not as a definition of the noun. Collective nouns are an informal part of language.
No, the word scienceis not a collective noun. However, any noun can function is as a collective noun in a suitable context without being a designated collective noun.
The collective noun is a community of families. The noun 'community' is functioning as a collective noun.
Shoal is a collective noun. It is the collective noun for fish. A shoal of fish.The collective noun is a mint of candies
There is no standard collective noun for police cars.The standard collective noun for police is a posse of police.The standard collective noun for cars is a fleet of cars.When there is no specific collective noun, any noun that suits the situation can be used, for example a chase of police cars, a procession of police cars, a swarm of police cars, etc.
Yes, there is:a broadside of artillery shellsa network of computersa storytelling of ravensa superfluity of nunsa wolf pack of submarines
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.
No, the noun farm is not a collective noun.
No it is not a collective noun.
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.
No, the noun land is not a collective noun. However, any noun can function is as a collective noun in a suitable context without being a designated collective noun.
The collective noun for 'wheat' is a sheaf of wheat.The collective noun for 'barley' is a crop of barley.