flag
1. A marker, such as a small strip of colored
paper, placed so as to protrude from between the
leaves of a book. Its purpose is either to show
the position of the book on the shelf, or to
indicate that the leaf marked (or the entire book)
requires special attention. 2. A slip placed in
the center of each section to facilitate sewing of
the headband. (139
, 173 )