The status quo of research on discourse particles in syntax and semantics What are discourse particles (DiPs), also known as modal particles (German Modalpartikeln) or downtoners (German Abtönungspartikeln)? Morphosyntactically, they are simply non-inflecting parts of speech. In this sense, they pattern with prepositions, complementizers, adverbs, focus particles and various other categories. However, DiPs are noticeably different from most of those elements: They show some similarities with the class of higher adverbs and with the class of focus particles. Their grammar is, nevertheless, quite different, as has often been noted: DiPs depend syntactically on sentence types and/or semantically on the speech act that a sentence type represents. DiPs are, however, extra-propositional themselves, in many ways. To give an example, consider rhetorical questions. In English, the question in (1) can be interpreted as a rhetorical question: (1) Who likes to be criticized? The expected answer Nobody! is already suggested by the question itself. The reason for this expectation is probably just world knowledge: Most people simply do not like to be criticized. However, there is no linguistic device in (1) which would enforce this interpretation. As a consequence, the more far-fetched interpretation as an information-seeking question is-at least technically-still possible. Compare (2): (2) Who wants to go shopping today? Here, it is not obvious at all that the question should be interpreted as a rhetorical question. It could be, technically, but such an interpretation seems to be rather far-fetched. Again, the interpretation depends on how we see the world: Since many people like to shop, the rhetorical question interpretation remains in the background.