The phrase "electoral register" refers to a list or record that contains the names of people who are eligible to vote in elections. It helps authorities ensure that only qualified individuals participate in the voting process. Full definition
The sale of electoral registers to commercial interests should also be banned as it acts as a deterrent on registering to vote amongst many disadvantaged people. (nextleft.org)
But you can opt out of the edited electoral register which can be used for marketing. (moneysavingexpert.com)
These boundaries will have been drawn up based on the current electoral register - which we know is already missing around 10 % of those eligible to vote. (politics.co.uk)