- demosAn ancient subdivision of Attica; (now also) a Greek municipality, an administrative area covering a city or several villages together.
- demonAn evil being resident in or working for Hell; a devil.
- demographyThe study of the characteristics of human populations, especially with regards to their makeup and fluctuations and the social causes behind these.
- demeA township or other subdivision of ancient Attica.
- democidemurder of people by a government which has power over them.
- demarchThe chief magistrate of a deme.
- demonymA name for an inhabitant or native of a specific place, usually derived from the name of the place.
- demophileA friend of the people.
- demospongeA sponge of the class Demospongiae, having skeletons made of spongin fibers.
- demoticsThe area of knowledge relating to the care and culture of the people; sociology in its broadest sense.
- laocracyDirect democracy, as opposed to representative parliamentary democracy.