dividernoun [ C ]
uk/dɪˈvaɪdər/usWORKPLACEa flat object that is used to separate parts of a room, different working areas, etc.:
The office is a large, open-plan environment with desks and dividers.
Portable sound-absorbent room dividers allow the area to be sectioned to suit your requirements.
an object that is used to separate particular pages or sections in a set of papers:
Included with the package are four ring binders with dividers, index, and 'how to use' information.
We sell printed and blank divider tabs online.