(sciences) Scientific research done, in whole or in part, by amateur (or nonprofessional) scientists.

(US) A generic citizen.

A business corporation that has, or takes on, some of the rights and responsibilities of individuals.

Of or relating to citizen science; collected as a part of a citizen science project.

Of or relating to citizen science. / (Of data) collected for citizen science.

A citizen of one's country or city.

A person who takes the view that they belong to no particular country or state, especially such a person who travels widely to different countries. / A person acting as part of the global citizenry.

(idiomatic) Synonym of John Doe

(programming, languages) Synonym of third-class object

A member of a class of individuals that receive fair treatment. / (programming, languages) Synonym of first-class object