flyleaf

UK: /ˈflaɪliːf/ US: /ˈflaɪˌlif/ ,(flī′lēf′)

Inflections of 'flyleaf' (n): npl: flyleaves

WordReference Random House Learner's Dictionary of American English © 2026

fly•leaf /ˈflaɪˌlif/   n. [countable] , pl. -leaves. 

1. a blank page in the front or the back of a book.

WordReference Random House Unabridged Dictionary of American English © 2026

fly•leaf  (flī′lēf′), n., pl. -leaves. 

1. a blank leaf in the front or the back of a book.

• fly¹ (noun, nominal, in combination: something fastened by the edge) + leaf 1825–35

Collins Concise English Dictionary © HarperCollins Publishers::

flyleaf / ˈflaɪˌliːf/ noun ( -leaves)

1. the inner leaf of the endpaper of a book, pasted to the first leaf