[account42]

And we don't expect dictionaries to contain every compound word you could come up with in German either.

[ben_w]

Not the ones that someone could come up with, just the ones people do use.

[netsharc]

Your examples are ridiculous though.. The meaning of "[G]esundheitszeugnis" can be derived if you understand the 2 words.

Meanwhile, a Bahnhof would be a "Yard/square of lanes" if one didn't get taught that it's "train station". Although I suppose anyone learning German will quickly learn that "Bahn" is something to do with trains. Unless it's Autobahn. Or Schwimmbahn.