a support placed at the end of a row of books to hold them upright, usually used in pairs.
one of two things occurring or located at either end of something else: two events that served as bookends to my career.
verb (used with object)
to occur or be located at the beginning and end of: His term in office was bookended by crises.
Origin of bookend
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019