welch

The German word "welch" is an interrogative pronoun that translates to "which" in English. It is used to ask questions about specific items or selections within a group, often inquiring about the identity or nature of something. "Welch" can also be used in exclamatory sentences, for example, "Welch ein schöner Tag!" (What a beautiful day!).

Similar words in German include "was für" (what kind of) and "welche" (which, in feminine/neutral form and plural). The main difference is that "welch" is used with singular neuter nouns and is more formal, while "was für" is broader and can refer to types or categories without being limited to specific selections.