Definition & Meaning of "interrogative determiner"in English

What is an "interrogative determiner"?

An interrogative determiner is a word used to introduce a question about a noun, indicating which specific item or items are being inquired about. The main interrogative determiners in English are "which" and "what." For example, in the phrase "Which book do you want?" the determiner "which" asks for specific information about the noun "book." Similarly, in "What movie are you watching?" the determiner "what" seeks to identify the noun "movie." Interrogative determiners are essential for forming questions and gathering specific information, helping to clarify what is being asked in a conversation.