Referendum (noun)

1. A general vote by the electorate on a single political question that has been referred to them for a direct decision.
2. A vote by all the members of an organization on an issue of major importance.

Origin:

From new latin referendus, gerund of referre "refer".

Examples:

1. The government called for a referendum on the issue of independence.
2. The referendum resulted in a majority vote in favor of the new constitution.
3. The company held a referendum to decide whether to merge with another firm.
4. The citizens of the country were given the opportunity to vote in a referendum on the matter.
5. The outcome of the referendum will determine the future of the country.