any area whose inhabitants are entitled to elect a member
constituency - a body of constituents, the body of voters who elect a representative member of a legislative or other public body; in looser use, the whole body of residents in the district or place represented by such a member, or the place or district itself considered in reference to its representation
1. ... 'electoral roll' means the official register of all voters entitled to vote in a given constituency or locality, drawn up and kept up to date by the competent authority under the electoral law of the Member State of residence, or the population register if it indicates eligibility to vote ...
2. Precinct. A constable's or police district. ... An election district created for convenient localization of polling places. A county or municipal subdivision for casting and counting votes in elections.