What is "yes-no question"

alt. A type of question that can only be answered by '''yes''' or '''no''' and so does not allow for elaboration or detail. n. A type of question that can only be answered by '''yes''' or '''no''' and so does not allow for elaboration or detail.

n. a question that can be answered by yes or no

In linguistics, a yes–no question, formally known as a polar question, is a question whose expected answer is either "yes" or "no". Formally, they present an exclusive disjunction, a pair of alternatives of which only one is acceptable. In English, such questions can be formed in both positive and negative forms (e.g. "Will you be here tomorrow?" and "Won't you be here tomorrow?").

Yes–no questions are in contrast with non-polar wh-questions, with the five Ws, which do not necessarily present a range of alternative answers, or necessarily restrict that range to two alternatives. (Questions beginning with "which", for example, often presuppose a set of several alternatives, from which one is to be drawn.)