- adjective referring to an object with a space inside it
- noun a place which is lower than the rest of the surface
- adjective having a space within, not solid
- noun a space between the back and the sewn signatures
- noun a paper tube glued to the spine of a book and to the covers, in order to strengthen the binding
Origin & History of “hollow”
modern English hole comes from an Old English adjective meaning ‘hollow’, and by a coincidental swap hollow originated in an Old English word for ‘hole’ (the two are probably ultimately related). Old English holh meant ‘hollow place’, ‘hole’, or ‘cave’, and presumably came from the same source as produced Old English hol ‘hollow’. In the early middle English period it began to be used as an adjective, its inflected form holge having become holwe, later holew or hollow.