Meanings
for; because; since
Ich möchte diese Hose kaufen, denn sie gefällt mir sehr.I'd like to buy these pants since I like them a lot.
archaic · dialectal · after a comparativethan
4 more meanings
Adverb
modal · particle · in a questionso, then, ever, but, now; used for emphasis or to express interest, surprise or doubt, or in rhetorical questions
Wieso denn?How so, then?
thus, so; expresses a consequence; see usage notes
Northern-Germany · colloquial · regionalthen, after that, in that case
unless (marks a negatively exceptive clause, with subjunctive)
Man sollte diesseits des Grabes niemanden preisen, er habe denn glücklich vollendet.One should not praise anyone before the grave unless he has completed [his life] successfully
Examples
GermanEnglish
Was ist denn heute mit dir los?What's up with you today?
Was sind denn das da für Leute?Who are those people over there?