People who examine something carefully, especially votes in an election.
Scrutineers are important because they help make sure everything is done correctly and fairly.
Examples:
The scrutineers counted the votes carefully.
The scrutineers watched to make sure no one cheated.
The scrutineers are very serious about their job.
The scrutineers are like detectives, but for votes.
The scrutineers have to be very careful not to make mistakes.
The scrutineers are the guardians of fair elections.