What is a natual expression for "vast collection"? I can't seen to find a natural expression for "vast collection", as in: > I have a vast collection of baseball cards. Literally there is , but that seems pretty unnatural and I don't see it used online much. I know there are other adjectives like or , but I can't find a good combination. Also, I am not sure if would be better than or if there is another common word pairing here.

How about []{}?
(And I thought of []{} for "collection", but doesn't sound good...)

> I have vast collection of baseball cards.

Your sentence would (rather literally) translate to:

> () /

Note that this sounds quite formal, and maybe a bit literary or stiff.

If you're looking for an expression that would be used in normal/daily conversation, how about:

> ()/
> ()/