The act of going over something very carefully to find out if there are any mistakes: The scrutinies of the geography quizzes completed by the students was being checked by their teacher.

David's word knowledge is based on a careful scrutiny of various dictionaries and other specialized sources; such as, books about biology, psychology, physics, mathematics, and several other scholarly publications.

A careful and detailed examination of something in order to get information about it: A close scrutiny of the plumbing in the apartment building revealed a defective pipe that needed to be replaced.