Constituency
Etymology
From Latin “constituere,” “to set up, establish,” from “com-” + “statuere,” “to set, place.” The constituents are those who constitute — set up and establish — the representative’s claim to office by electing them; the abstract “constituency” names that founding body collectively.
noun · /kun-STICH-oo-un-see/
The body of people a representative serves, or, more loosely, any group whose interests someone answers to.
What it names
Use it to name whose approval and interests a decision-maker actually depends on — which is often not the same as the general public.
Example
The senator softened the bill to avoid angering her rural constituency.
Related idea
A constituency is the group you answer to; an “electorate” is specifically the body entitled to vote. The looser sense matters most: a CEO’s real constituency may be shareholders, not customers — knowing whose favor someone actually needs explains behavior that otherwise looks baffling.