sketchbook /ˈskɛt͡ʃˌbʊk/ noun3 •A book or pad with blank pages for sketching; a sketch pad. •A book of printed sketches.This compact sketchbook displays every style of blinds imaginable, from rollers to Romans and from London to Austrian blinds. — 2005 •(old-fashioned) A printed book of literary sketches or skits. formssketchbooks